#F6BFBC · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 12/100 (fail) · Harmony 100/100 (monochrome) · Distinguishable 59/100 (somewhat similar) · Match 39/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Rainbow and White are a clear pair (ΔE 28). They have closely related hues (3° apart) and their lightness is similar, so they read as two same-weight colours.
Rainbow text on White: 1.60:1 (Fail); White text on Rainbow: 1.60:1 (Fail). Neither meets AA at body size — nudging one color to #9B6A68 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 #9B6A68 clears AA.
Their CIE76 ΔE is about 28 — a clear pair.
clearly different colours (ΔE 28).
Explore each color: Rainbow #F6BFBC · White #FFFFFF · Shades: Rainbow shades · White shades · Contrast checker →