#0188AF · #858000
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 69/100 (split-complementary (soft)) · Distinguishable 100/100 (easy to tell apart) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Steel Blue and Olive are very different (ΔE 87). They have distinctly different hues (136° apart) and their lightness is similar, so they read as two same-weight colours.
Steel Blue text on Olive: 1.01:1 (Fail); Olive text on Steel Blue: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #001520 clears it.
Split-complementary (soft) — workable but not a textbook harmony (harmony 69/100). 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 #001520 clears AA.
Their CIE76 ΔE is about 87 — very different.
clearly different colours (ΔE 87).
Explore each color: Steel Blue #0188AF · Olive #858000 · Shades: Steel Blue shades · Olive shades · Contrast checker →