#D3DFD7 · #E6D8D4
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 96/100 (triadic) · Distinguishable 27/100 (hard to tell apart) · Match 79/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Gainsboro and Ebb are very close (ΔE 10). They have distinctly different hues (127° apart) and their lightness is similar, so they read as two same-weight colours.
Gainsboro text on Ebb: 1.01:1 (Fail); Ebb text on Gainsboro: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #58635C clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 96/100). 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 #58635C clears AA.
Their CIE76 ΔE is about 10 — very close.
close but visibly different (ΔE 9.7).
Explore each color: Gainsboro #D3DFD7 · Ebb #E6D8D4 · Shades: Gainsboro shades · Ebb shades · Contrast checker →