#393F0A · #4B3700
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 95/100 (analogous) · Distinguishable 33/100 (hard to tell apart) · Match 68/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Lime and Deep Vivid Yellow are a clear pair (ΔE 15). They have closely related hues (23° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Lime text on Deep Vivid Yellow: 1.02:1 (Fail); Deep Vivid Yellow text on Deep Lime: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #9FA873 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 95/100). 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 #9FA873 clears AA.
Their CIE76 ΔE is about 15 — a clear pair.
clearly different colours (ΔE 15).
Explore each color: Deep Lime #393F0A · Deep Vivid Yellow #4B3700 · Shades: Deep Lime shades · Deep Vivid Yellow shades · Contrast checker →