black

#000000

#288C7D

#288C7D

Contrast Ratio

5.14:1

Delta E

61.54

Very Different

50:50 Mix

Color Values

Format #000000 #288C7D
HEX #000000 #288C7D
RGB 0, 0, 0 40, 140, 125
HSL 0.0, 0.0%, 0.0% 171.0, 55.6%, 35.3%
HSV 0.0, 0.0%, 0.0% 171.0, 71.4%, 54.9%
CMYK 0%, 0%, 0%, 100% 71.4%, 0.0%, 10.7%, 45.1%
OKLCH 0.0 0.0 0.0 0.5798 0.0927 180.7

Contrast & Accessibility

5.14:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #288C7D → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #288C7D

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #288C7D);
background: linear-gradient(135deg, #000000, #288C7D);

Explore Each Color

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