#565B00 · #6E5000
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 90/100 (analogous) · Distinguishable 25/100 (hard to tell apart) · Match 59/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Vivid Lime and Dark Vivid Yellow are a clear pair (ΔE 19). They have closely related hues (20° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Vivid Lime text on Dark Vivid Yellow: 1.03:1 (Fail); Dark Vivid Yellow text on Deep Vivid Lime: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #C7CF81 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 90/100). 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 #C7CF81 clears AA.
Their CIE76 ΔE is about 19 — a clear pair.
clearly different colours (ΔE 19).
Explore each color: Deep Vivid Lime #565B00 · Dark Vivid Yellow #6E5000 · Shades: Deep Vivid Lime shades · Dark Vivid Yellow shades · Contrast checker →