#CBD5DB · #DBD0D4
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 81/100 (split-complementary) · Distinguishable 30/100 (hard to tell apart) · Match 83/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
MildBlue and Light Gray are very close (ΔE 8). They have distinctly different hues (136° apart) and their lightness is similar, so they read as two same-weight colours.
MildBlue text on Light Gray: 1.01:1 (Fail); Light Gray text on MildBlue: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #545C62 clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 81/100). 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 #545C62 clears AA.
Their CIE76 ΔE is about 8 — very close.
close but visibly different (ΔE 7.6).
Explore each color: MildBlue #CBD5DB · Light Gray #DBD0D4 · Shades: MildBlue shades · Light Gray shades · Contrast checker →