#201D00 · #291800
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 89/100 (analogous) · Distinguishable 9/100 (hard to tell apart) · Match 80/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Vivid Yellow and Deep Vivid Yellow are very close (ΔE 9). They have closely related hues (19° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Vivid Yellow text on Deep Vivid Yellow: 1.01:1 (Fail); Deep Vivid Yellow text on Deep Vivid Yellow: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #878563 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 #878563 clears AA.
Their CIE76 ΔE is about 9 — very close.
close but visibly different (ΔE 8.9).
Explore each color: Deep Vivid Yellow #201D00 · Deep Vivid Yellow #291800 · Shades: Deep Vivid Yellow shades · Deep Vivid Yellow shades · Contrast checker →