#002126 · #011F2F
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 77/100 (monochrome) · Distinguishable 8/100 (hard to tell apart) · Match 80/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Vivid Cyan and Deep Vivid Cyan are very close (ΔE 9). They have closely related hues (13° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Vivid Cyan text on Deep Vivid Cyan: 1.01:1 (Fail); Deep Vivid Cyan text on Deep Vivid Cyan: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #678A8F clears it.
Monochrome — monochrome — a recognised, balanced pairing (harmony 77/100). 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 #678A8F clears AA.
Their CIE76 ΔE is about 9 — very close.
close but visibly different (ΔE 9.0).
Explore each color: Deep Vivid Cyan #002126 · Deep Vivid Cyan #011F2F · Shades: Deep Vivid Cyan shades · Deep Vivid Cyan shades · Contrast checker →