#5B7CFF · #A15AFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 94/100 (analogous) · Distinguishable 59/100 (somewhat similar) · Match 29/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Vivid Blue and Vivid Indigo are very different (ΔE 32). They have distinctly different hues (38° apart) and their lightness is similar, so they read as two same-weight colours.
Vivid Blue text on Vivid Indigo: 1.06:1 (Fail); Vivid Indigo text on Vivid Blue: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #0B0065 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 94/100). 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 #0B0065 clears AA.
Their CIE76 ΔE is about 32 — very different.
clearly different colours (ΔE 32).
Explore each color: Vivid Blue #5B7CFF · Vivid Indigo #A15AFF · Shades: Vivid Blue shades · Vivid Indigo shades · Contrast checker →