#C5DDFF · #EFD7B3
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 100/100 (complementary) · Distinguishable 77/100 (easy to tell apart) · Match 12/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Periwinkle and ChaiTeaLatte are very different (ΔE 40). They have near-opposite hues (179° apart) and their lightness is similar, so they read as two same-weight colours.
Periwinkle text on ChaiTeaLatte: 1.01:1 (Fail); ChaiTeaLatte text on Periwinkle: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #4D617F 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 #4D617F clears AA.
Their CIE76 ΔE is about 40 — very different.
clearly different colours (ΔE 40).
Explore each color: Periwinkle #C5DDFF · ChaiTeaLatte #EFD7B3 · Shades: Periwinkle shades · ChaiTeaLatte shades · Contrast checker →