black

#000000

#288B4B

#288B4B

Contrast Ratio

4.88:1

Delta E

71.88

Very Different

50:50 Mix

Color Values

Format #000000 #288B4B
HEX #000000 #288B4B
RGB 0, 0, 0 40, 139, 75
HSL 0.0, 0.0%, 0.0% 141.2, 55.3%, 35.1%
HSV 0.0, 0.0%, 0.0% 141.2, 71.2%, 54.5%
CMYK 0%, 0%, 0%, 100% 71.2%, 0.0%, 46.0%, 45.5%
OKLCH 0.0 0.0 0.0 0.5645 0.1329 151.0

Contrast & Accessibility

4.88:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #288B4B → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #288B4B

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #288B4B);
background: linear-gradient(135deg, #000000, #288B4B);

Explore Each Color

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