A common question is whether we are limited to using the colours that are built-in to the Color structure in SwiftUI:

The answer is a hard no. Watch this super-short 5-minute video for how to create a custom color set in Xcode:
TIP
On a related note, here is a great site for browsing pleasing color combinations. You can use the eyedropper tool (discussed in the video above) to sample and use the colors shown on the aforementioned website.
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