Meet contrast before you please taste

Why this rule exists

A large share of the people using your product see it in conditions you did not design for: bright sun on a phone, an aging screen, tired eyes, low vision, a dimmed display to save battery. Sufficient contrast between text and its background is what keeps the interface legible across all of that, and it is not a matter of taste but of whether people can read at all. The pale gray text on a white background that looks so refined on your calibrated monitor in a dark room can be genuinely invisible to someone else, and the elegance is not worth the exclusion. Contrast is measurable, there are clear thresholds for it, and meeting them is a floor, not a ceiling, on which your aesthetic choices sit. A design that looks sophisticated but cannot be read has failed at the one job text has. Legibility is not negotiable; taste operates within it.