#B8D5D7 · #D8C8DB
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 86/100 (triadic) · Distinguishable 32/100 (hard to tell apart) · Match 59/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
RhythmicBlue and Thistle are a clear pair (ΔE 18). They have distinctly different hues (107° apart) and their lightness is similar, so they read as two same-weight colours.
RhythmicBlue text on Thistle: 1.03:1 (Fail); Thistle text on RhythmicBlue: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #435C5E clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 86/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.0:1, below the 4.5:1 minimum. Nudging one colour to #435C5E clears AA.
Their CIE76 ΔE is about 18 — a clear pair.
clearly different colours (ΔE 18).
Explore each color: RhythmicBlue #B8D5D7 · Thistle #D8C8DB · Shades: RhythmicBlue shades · Thistle shades · Contrast checker →