#56487F · #6B406E
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 89/100 (analogous) · Distinguishable 45/100 (somewhat similar) · Match 72/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Dark Slate Blue and Dark Dusty Purple are a clear pair (ΔE 13). They have distinctly different hues (41° apart) and their lightness is similar, so they read as two same-weight colours.
Dark Slate Blue text on Dark Dusty Purple: 1.02:1 (Fail); Dark Dusty Purple text on Dark Slate Blue: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #C6B9F8 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 89/100). 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 #C6B9F8 clears AA.
Their CIE76 ΔE is about 13 — a clear pair.
clearly different colours (ΔE 13).
Explore each color: Dark Slate Blue #56487F · Dark Dusty Purple #6B406E · Shades: Dark Slate Blue shades · Dark Dusty Purple shades · Contrast checker →