#CACACA · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 13/100 (fail) · Harmony 100/100 (monochrome) · Distinguishable 55/100 (somewhat similar) · Match 59/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Light Gray and White are a clear pair (ΔE 19). They have closely related hues (0° apart) and their lightness is different, giving a clear light/dark split.
Light Gray text on White: 1.64:1 (Fail); White text on Light Gray: 1.64:1 (Fail). Neither meets AA at body size — nudging one color to #767676 clears it.
Monochrome — monochrome — a recognised, balanced pairing (harmony 100/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.6:1, below the 4.5:1 minimum. Nudging one colour to #767676 clears AA.
Their CIE76 ΔE is about 19 — a clear pair.
clearly different colours (ΔE 19).
Explore each color: Light Gray #CACACA · White #FFFFFF · Shades: Light Gray shades · White shades · Contrast checker →