: If you aren't in Photoshop or you're in an earlier version that doesn't have the color-blind proof view mentioned above, you can check your design's brightness contrast by converting to grayscale.

@Si6392903

If you aren't in Photoshop or you're in an earlier version that doesn't have the color-blind proof view mentioned above, you can check your design's brightness contrast by converting to grayscale. Or, if it's an earlier version of PS, you can use either a hue and saturation layer with the saturation turned all the way down, or a gradient map using black to white as the gradient. Put that layer as the top layer in your document, then whenever you want to check the contrast, turn it on. I prefer the gradient map because it is more accurate in terms of what colors contrast against each other in terms of brightness (red shows as a little lighter than it is if you just desaturate), but either can show you problem areas in the design. So long as your page looks fine in that view, it should be ok to a color-blind user.

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