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Add A Realistic Rainbow To A Photo With Photoshop

http://www.photoshopessentials.com/photo-effects/rainbow/

Written by Steve Patterson. In this Photoshop Effects tutorial, we’ll learn how to easily add a rainbow, and even a double rainbow, to a photo! As we’ll see, Photoshop ships with a ready-made rainbow gradient for us to use. We’ll learn where to find it and how to load it in. We’ll also learn how to flip the order of the colors in a gradient, which we’ll need to do to create a more realistic double rainbow effect. Of course, as with most photo effects, it helps if you start with the right type of image. In this case, a photo taken outdoors is a good place to start. If it happens to be a landscape photo taken after a rain storm, even better! I’ll be using Photoshop CS5 throughout this tutorial but any recent version will work.

Download our tutorials as print-ready PDFs! Learning Photoshop has never been easier!

Here’s the photo I’ll be starting with:

The original photo. Image licensed from iStockphoto by Photoshop Essentials.com

The original image.

Here’s what the image will look like after adding a double rainbow:

The final Photoshop double rainbow photo effect. Image © 2010 Photoshop Essentials.com

The final rainbow effect.

Let’s get started!

Step 1: Add A New Blank Layer

With the image newly opened in Photoshop, if we look in the Layers panel, we see that we currently have one layer, the Background layer, which contains our image:

The Layers panel in Photoshop showing the Background layer. Image © 2010 Photoshop Essentials.com.

The photo sits on the Background layer in the Layers panel.

The first thing we need to do is add a new blank layer above the Background layer. To do that, click on the New Layer icon at the bottom of the Layers panel:

The New Layer icon in the Layers panel in Photoshop. Image © 2010 Photoshop Essentials.com

Click on the New Layer icon.

Photoshop adds a new blank layer named "Layer 1" above the Background layer. Double-click directly on the name of the layer and change it to “Rainbow”, since we’ll be adding our initial rainbow to this layer. Press Enter (Win) /Return (Mac) when you’re done to accept the name change:

The new Rainbow layer has been added to the Photoshop document. Image © 2010 Photoshop Essentials.com.

Rename the new layer “Rainbow”.

Step 2: Select The Rainbow Gradient

As I mentioned, Photoshop ships with a ready-made rainbow gradient for us to use. It’s not one of the gradients that Photoshop makes available to us by default, but all we need to do is load it in manually. To do that, select theGradient Tool from the Tools panel:

Photoshop Gradient Tool. Image © 2010 Photoshop Essentials.com.

Select the Gradient Tool.

Then, with the Gradient Tool selected, click on the Gradient Picker in the Options Bar at the top of the screen:

The Gradient Picker in the Options Bar in Photoshop. Image © 2010 Photoshop Essentials.com.

Click on the Gradient Picker in the Options Bar.

This opens Photoshop’s Gradient Editor which shows us small thumbnails of the gradients we can choose from. By default, the rainbow gradient isn’t one of them, so let’s load it in. Click on the right-pointing arrow in the top right of the Gradient Editor:

Photoshop Gradient Editor. Image © 2010 Photoshop Essentials.com.

Click on the small arrow.

A list of additional gradient sets appears. The one we want is Special Effects. Select it from the list:

Selecting the Special Effects gradients in Photoshop. Image © 2010 Photoshop Essentials.com.

Select the “Special Effects” gradients.

Photoshop will ask you if you want to replace the original gradients with the Special Effects gradients or simply append them to the bottom of the list. Click Append so you’ll still have the original gradients available, and the new Special Effects ones will be added below them:

Appending the new gradients. Image © 2010 Photoshop Essentials.com

Click “Append” to add the new “Special Effects” gradients in with the original gradients.

With the new Special Effects gradients added, the one we want – Russell’s Rainbow – is the last one at the bottom. If you have Photoshop’s Tool Tips enabled in the Preferences (they’re enabled by default), you’ll see the name “Russell’s Rainbow” appear when you hover your mouse over the gradient’s thumbnail. Click on the thumbnail to select the gradient, then click OK to exit out of the Gradient Editor:

Selecting the Russell's Rainbow gradient in Photoshop.

Click on the “Russell’s Rainbow” thumbnail to select the gradient.

Step 3: Select “Radial Gradient” From The Options Bar

To make the rainbow gradient appear as an arc when we draw it, go back up to the Options Bar at the top of the screen and click on the Radial Gradient option:

The Radial Gradient option in the Options Bar in Photoshop. Image © 2010 Photoshop Essentials.com.

Select “Radial” from the Options Bar.

Step 4: Drag Out A Rainbow With The Gradient Tool

To add the rainbow colors to the image, all we need to do is drag out a gradient. I want my rainbow to appear as if it’s touching the ground behind the group of trees on the left of my photo and then arching high above the larger tree on the right. To do that, I’ll position my mouse almost at the edge of the photo near the bottom right corner, in line horizontally with the bottom of the trees on the left. I’ll click on that spot to set the starting point for my gradient, and with my mouse button still held down, I’ll drag all the way across the image to a point just beyond the left of the trees. Holding my Shift key down as I drag will limit the direction I can drag in, making it easy to drag horizontally:

Dragging out a radial rainbow gradient in Photoshop. Image © 2010 Photoshop Essentials.com

Dragging out a radial rainbow gradient from right to left in the image.

When you release your mouse button, Photoshop draws the rainbow gradient. It doesn’t look terribly realistic just yet, but it’s a start:

Photoshop rainbow gradient. Image © 2010 Photoshop Essentials.com

Photoshop draws the gradient when you release your mouse button.

Step 5: Change The Blend Mode Of The Rainbow Layer To “Screen”

Go up to the blend mode options in the top left of the Layers panel (it’s the drop-down box set to "Normal" by default) and change the blend mode of the Rainbow layer to Screen:

Photoshop Screen blend mode. Image © 2010 Photoshop Essentials.com

Change the blend mode of the rainbow layer to Screen.

The colors of the rainbow will now blend in better with the photo behind them:

The rainbow after changing the blend mode to Screen. Image © 2010 Photoshop Essentials.com

The rainbow after changing its blend mode to Screen.

Step 6: Apply The Gaussian Blur Filter

Let’s blur the colors of the rainbow together so it looks more realistic. Go up to the Filter menu in the Menu Bar at the top of the screen, choose Blur, then choose Gaussian Blur:

Selecting the Gaussian Blur filter in Photoshop. Image © 2010 Photoshop Essentials.com.

Go to Filter > Blur > Gaussian Blur.

This opens Photoshop’s Gaussian Blur dialog box. Drag the Radius slider at the bottom of the dialog box towards the right to increase the amount of blurring being applied to the rainbow, keeping an eye on the image as you drag the slider so you can see a preview of what’s happening. Continue dragging the slider to the right until the transitions between the colors look more soft and natural. The actual Radius value you end up choosing will depend a lot on the size and resolution of your image. For me, a value of around 50 pixels works well. Click OK when you’re done to close out of the dialog box:

Photoshop Gaussian Blur filter. Image © 2010 Photoshop Essentials.com.

Drag the Radius slider to soften the color transitions in the rainbow.

Here’s my image after applying the Gaussian Blur filter:

The image after blurring the rainbow. Image © 2010 Photoshop Essentials.com

The rainbow now looks more realistic after applying the Gaussian Blur filter.

Step 7: Add A Layer Mask

Click on the Layer Mask icon at the bottom of the Layers panel:

The Layer Mask icon in the Layers panel in Photoshop. Image © 2010 Photoshop Essentials.com

Click the Layer Mask icon.

Nothing will happen yet in the document window, but Photoshop adds a layer mask thumbnail to the right of the main preview thumbnail on the Rainbow layer. If you look closely, you’ll see a white highlight box appearing around the layer mask’s thumbnail. This tells us that the mask, not the layer itself, is selected:

A layer mask thumbnail appears in the Layers panel in Photoshop. Image © 2010 Photoshop Essentials.com.

The layer mask thumbnail tells us that a mask has been added.

Step 8: Choose The Black To White Gradient

With the Gradient Tool still selected, right-click (Win) / Control-click (Mac) anywhere inside the document window to quickly access the gradient presets thumbnails, the same ones we saw a moment ago in the full Gradient Editor dialog box. Select the Black to White gradient by clicking on its thumbnail (third from the left, top row). PressEnter (Win) / Return (Mac) when you’re done to close out of the gradient list:

The Black to White gradient thumbnail in the Gradient Editor in Photoshop. Image © 2010 Photoshop Essentials.com

Click on the Black to White gradient’s thumbnail to select it.

Step 9: Choose “Linear Gradient” From The Options Bar

Go back up to the Options Bar and this time, click on the Linear Gradient option:

The Linear gradient option in the Options Bar in Photoshop. Image © 2010 Photoshop Essentials.com

Click on the “Linear” gradient icon.

Step 10: Drag A Black To White Gradient On The Layer Mask

A real rainbow would usually appear to get brighter as it reaches higher into the sky, so we’re going to give our Photoshopped rainbow that same effect by dragging a black to white gradient from the base of the rainbow (the point where the rainbow and the ground should meet) to the top of the image. To do that, with my Gradient Tool selected, I’ll click my mouse somewhere along the bottom of the trees on the left. Then, with my mouse button still held down, I’ll hold down my Shift key as well and drag straight up to the top of the image. Holding down Shift makes it easy to drag in a vertical direction:

Dragging a black-to-white gradient from the base of the rainbow to the top of the image.

Drag a black to white gradient from the base of the rainbow to the top of the image.

When I release my mouse button, Photoshop draws the black-to-white gradient. Since the gradient was drawn on the layer mask, not on the layer itself, we don’t see the actual gradient in the image. Instead, the rainbow now appears to start near the bottom of the trees on the left and gets brighter as it reaches higher into the sky:

The rainbow after dragging a black-to-white vertical gradient on the layer mask.

The rainbow no longer extends all the way to the bottom of the photo thanks to the layer mask.

Step 11: Duplicate The Rainbow Layer To Increase Its Brightness

To increase the brightness of the rainbow, simply press Ctrl+J (Win) / Command+J (Mac) to duplicate the layer. If, after duplicating the layer, you find the rainbow is now too bright, dial it back a few notches by lowering the opacity of the duplicated layer. You’ll find the Opacity option directly across from the blend mode option at the top of the Layers panel. I’m going to lower mine down to around 70%:

Duplicating the rainbow layer and lowering the opacity of the duplicate layer to 70%.

Press “Ctrl+J” (Win) / “Command+J” (Mac) to duplicate the rainbow layer, then lower the new layer’s opacity as needed.

Here’s my image after duplicating my rainbow layer and then lowering the opacity:

The rainbow in the photo now looks brighter. Image © 2010 Photoshop Essentials.com

The rainbow now appears brighter.

Step 12: Group The Two Rainbow Layers

Let’s do a little housekeeping in the Layers panel by grouping the two rainbow layers together. Grouping related layers makes it easier to keep the Layers panel organized. With the top layer selected, hold down your Shift key and click on the original Rainbow layer directly below it to select both layers at once. You’ll see them both highlighted in blue, letting you know they’re both selected:

Selecting two layers at once in the Layers panel in Photoshop. Image © 2010 Photoshop Essentials.com

Select both rainbow layers.

Then go up to the Layer menu at the top of the screen and choose Group Layers:

Grouping layers in Photoshop. Image © 2010 Photoshop Essentials.com

Go to Layer > Group Layers.

Photoshop will group the two layers together in the Layers panel. Photoshop names the new group "Group 1". By default, the layer group will be closed, preventing us from seeing the two layers inside of it, which is fine for now:

The two rainbow layers have been added to a layer group. Image © 2010 Photoshop Essentials.com

The two rainbow layers are now inside “Group 1″.

Step 13: Add A New Blank Layer

We have our initial rainbow. Now let’s add a second one to create a double rainbow effect! First, we’ll need a new layer, so click once again on the New Layer icon at the bottom of the Layers panel:

The New Layer icon in the Layers panel in Photoshop. Image © 2010 Photoshop Essentials.com

Add another new layer.

The new layer will appear above the layer group in the Layers panel. Double-click on the new layer’s name and change it to “Second rainbow”, then press Enter (Win) / Return (Mac) to accept the name change:

Renaming the new layer 'Second rainbow'. Image © 2010 Photoshop Essentials.com

Rename the new layer “Second rainbow”.

Step 14: Re-Select The Rainbow Gradient

Click once again on the Gradient Picker in the Options Bar at the top of the screen:

The Gradient Picker in Photoshop. Image © 2010 Photoshop Essentials.com

The Gradient Picker is currently showing the black to white gradient.

When the Gradient Editor opens, click again on the Russell’s Rainbow thumbnail to select the rainbow gradient, but don’t close out of the Gradient Editor yet. We need to make some changes to it:

Selecting the Russell's Rainbow gradient in Photoshop. Image © 2010 Photoshop Essentials.com

Re-select the Russell’s Rainbow gradient.

Step 15: Flip The Order Of The Colors In The Gradient

Whenever we see a double rainbow in nature, the colors in the second rainbow are always in reverse order, which means we need to reverse the order of the colors in our gradient. With the Gradient Editor still open, click on theblue color stop directly below the gradient preview bar and drag it towards the left. Then do the same thing with the green and yellow color stops, dragging them towards the left. It doesn’t matter how far you drag them as long as there’s some space between them. This is just to make sure they don’t overlap each other as we reposition them. Leave the red color stop in place:

Dragging the blue, green and yellow color stops over to the left. Image © 2010 Photoshop Essentials.com

Drag the blue, green and yellow color stops towards the left just to spread them out temporarily.

Click on the red color stop to select it, then enter a value of 82% into the Location option. This will place the red color stop in the same location that the blue color stop was in originally:

Setting the location of the red color stop to 82% in the gradient. Image © 2010 Photoshop Essentials.com

Click on the red color stop, then enter 82% for the Location.

Next, click on the yellow color stop to select it, then set its Location value to 85%. This moves yellow into the spot originally held by green:

Setting the location of the yellow color stop to 85% in the gradient. Image © 2010 Photoshop Essentials.com

Click on the yellow color stop, then enter 85% for the Location.

Click on the green color stop to select it, then set its Location value to 88%, which moves green into yellow’s original location:

Setting the location of the green color stop to 88% in the gradient. Image © 2010 Photoshop Essentials.comYou must Sign up as a member of Effecthub to view the content.

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Margherita Manna

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2022-08-17

Post molto utile. Grazie. Il risultato è sbalorditivo

anushkamalik900

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2022-04-16

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alexia.defrance

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2022-04-15

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2021-12-01

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BeauvaisGinnynw429

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2021-11-24

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roens

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2013-10-08

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