Numerous users have voiced their concern that they are unable to set a custom wallpaper color on macOS Sequoia 15.4. According to them, the background changes to white after selecting a custom color, in other words, all their custom colored backgrounds have turned to white. As a result of which, they can only select from one of the preset colors.
What is infuriating to note is the fact that the bug was present even in the beta build but was not addressed and has subsequently managed to creep into the stable build. If you are also currently facing this issue, then this guide will make you aware of numerous nifty workarounds that should help you mitigate this problem. So without further ado, let’s check them out.
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Fix Cannot Set Custom Wallpaper Color on macOS Sequoia 15.4
It is recommended that you try out each of the below-mentioned workarounds and then see which one spells out success. So with that in mind, let’s get started.
FIX 1: Using Color Picker
You can screen capture a small color square from the Color Picker and use it as a mosaic image wallpaper.
FIX 2: Using Website
You can also use a website like https://mdigi.tools/solid-color-image-generator/ to generate an image with any color and then use that as your wallpaper.
Likewise, this https://mdigi.tools/solid-color-image-generator/ is also a handy alternative. Just save the JPG to a folder of your choosing, then select ‘change wallpaper’, add photo from ‘choose’, and select your downloaded JPG. You can also select ‘show on all spaces’ if required.
FIX 3: Using Preview App
- Open any image file, and choose to annotate it.
- Then pick the Rectangle shape.
- Now change its Fill Color to the color of your choice.
- Then draw a rectangle and screenshot only the filled rectangle.
- You may now use the screenshot as wallpaper.
FIX 4: Using Pages App
- First off, make a new document in Pages.
- Then insert a rectangle shape and fill it with the color you want.
- Now press Command+Shift+4 and select as much area of the shape as you can to make a selective screenshot.
- Then click Done and save to Photos.
- Now open the Photos app and select the photo of your new color.
- Finally, click Share and select Set Wallpaper.
That’s it. These were the four different methods to fix the issue of being unable to set a custom wallpaper color on macOS Sequoia 15.4. As far as the official stance on this matter is concerned, the developers are yet to acknowledge this issue, let alone give out any ETA for the rollout of a fix. As and when any of these two things happen, we will update this guide accordingly. In the meantime, the aforementioned workarounds are your best bet.
