black

#000000

#288B4F

#288B4F

Contrast Ratio

4.9:1

Delta E

70.74

Very Different

50:50 Mix

Color Values

Format #000000 #288B4F
HEX #000000 #288B4F
RGB 0, 0, 0 40, 139, 79
HSL 0.0, 0.0%, 0.0% 143.6, 55.3%, 35.1%
HSV 0.0, 0.0%, 0.0% 143.6, 71.2%, 54.5%
CMYK 0%, 0%, 0%, 100% 71.2%, 0.0%, 43.2%, 45.5%
OKLCH 0.0 0.0 0.0 0.5652 0.129 152.5

Contrast & Accessibility

4.9:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #288B4F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #288B4F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #288B4F);
background: linear-gradient(135deg, #000000, #288B4F);

Explore Each Color

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