black

#000000

#51B721

#51B721

Contrast Ratio

8.15:1

Delta E

105.18

Very Different

50:50 Mix

Color Values

Format #000000 #51B721
HEX #000000 #51B721
RGB 0, 0, 0 81, 183, 33
HSL 0.0, 0.0%, 0.0% 100.8, 69.4%, 42.4%
HSV 0.0, 0.0%, 0.0% 100.8, 82.0%, 71.8%
CMYK 0%, 0%, 0%, 100% 55.7%, 0.0%, 82.0%, 28.2%
OKLCH 0.0 0.0 0.0 0.6916 0.2018 138.3

Contrast & Accessibility

8.15:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #51B721 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #51B721

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #51B721);
background: linear-gradient(135deg, #000000, #51B721);

Explore Each Color

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