#D9DCCA · #DAD7E8
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 100/100 (complementary) · Distinguishable 27/100 (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.
Bone and LightOpus are a clear pair (ΔE 18). They have near-opposite hues (179° apart) and their lightness is similar, so they read as two same-weight colours.
Bone text on LightOpus: 1.01:1 (Fail); LightOpus text on Bone: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #5E6051 clears it.
Complementary — complementary — 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 1.0:1, below the 4.5:1 minimum. Nudging one colour to #5E6051 clears AA.
Their CIE76 ΔE is about 18 — a clear pair.
clearly different colours (ΔE 18).
Explore each color: Bone #D9DCCA · LightOpus #DAD7E8 · Shades: Bone shades · LightOpus shades · Contrast checker →