#79D0A7 · #B0B3FC
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 42/100 (clashing) · Distinguishable 48/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
CrystalGem and Light Vivid Blue are very different (ΔE 70). They have distinctly different hues (86° apart) and their lightness is similar, so they read as two same-weight colours.
CrystalGem text on Light Vivid Blue: 1.06:1 (Fail); Light Vivid Blue text on CrystalGem: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #005539 clears it.
Clashing — awkward hue gap — tends to clash (harmony 42/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.1:1, below the 4.5:1 minimum. Nudging one colour to #005539 clears AA.
Their CIE76 ΔE is about 70 — very different.
clearly different colours (ΔE 70).
Explore each color: CrystalGem #79D0A7 · Light Vivid Blue #B0B3FC · Shades: CrystalGem shades · Light Vivid Blue shades · Contrast checker →