black

#000000

#637A39

#637A39

Contrast Ratio

4.37:1

Delta E

61.31

Very Different

50:50 Mix

Color Values

Format #000000 #637A39
HEX #000000 #637A39
RGB 0, 0, 0 99, 122, 57
HSL 0.0, 0.0%, 0.0% 81.2, 36.3%, 35.1%
HSV 0.0, 0.0%, 0.0% 81.2, 53.3%, 47.8%
CMYK 0%, 0%, 0%, 100% 18.9%, 0.0%, 53.3%, 52.2%
OKLCH 0.0 0.0 0.0 0.5457 0.095 125.5

Contrast & Accessibility

4.37:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637A39 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637A39

Color Difference (Delta E)

61.31 Very Different
0 — Identical 5 — Similar 25 — Noticeable 100 — Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #637A39);
background: linear-gradient(135deg, #000000, #637A39);

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