black

#000000

#21AB3F

#21AB3F

Contrast Ratio

6.96:1

Delta E

95.2

Very Different

50:50 Mix

Color Values

Format #000000 #21AB3F
HEX #000000 #21AB3F
RGB 0, 0, 0 33, 171, 63
HSL 0.0, 0.0%, 0.0% 133.0, 67.6%, 40.0%
HSV 0.0, 0.0%, 0.0% 133.0, 80.7%, 67.1%
CMYK 0%, 0%, 0%, 100% 80.7%, 0.0%, 63.2%, 32.9%
OKLCH 0.0 0.0 0.0 0.649 0.1865 146.0

Contrast & Accessibility

6.96:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21AB3F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21AB3F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21AB3F);
background: linear-gradient(135deg, #000000, #21AB3F);

Explore Each Color

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