Rich color does not guarantee clear information. Icons, time, and notifications are recognized mainly through luminance differences. Red and green regions with similar brightness can merge for people with low vision or color-vision differences. Capture the real home screen and convert it to grayscale. If icon boundaries weaken immediately, the problem is value structure rather than taste.
Next, inspect the worst patch. W3C guidance for text over images offers a useful rule: average contrast across a picture cannot replace contrast directly behind each character. Look at frequently used apps, folder labels, and widgets. Gold highlights, pale clouds, black fur, and fine sigil lines deserve special attention because each can blend with system foregrounds.
Fix the local conflict first. Reduce texture behind icons, move the subject, enlarge quiet space, or use the operating system's blur and appearance options. Do not flatten the entire artwork into gray merely to pass a check, and avoid baking essential words into the image. Cropping, language changes, and accessibility settings make image-based text fragile.
Finally, ask someone with different visual needs to try the screen, or inspect it in daylight, a dark room, and low brightness. Accessibility does not remove beauty; it lets color, beasts, and pattern remain visible without obstructing action. Quickly finding an app, reading the time, and recognizing an alert are the evidence that the wallpaper works.