black

#000000

#21BC4F

#21BC4F

Contrast Ratio

8.37:1

Delta E

100.73

Very Different

50:50 Mix

Color Values

Format #000000 #21BC4F
HEX #000000 #21BC4F
RGB 0, 0, 0 33, 188, 79
HSL 0.0, 0.0%, 0.0% 137.8, 70.1%, 43.3%
HSV 0.0, 0.0%, 0.0% 137.8, 82.4%, 73.7%
CMYK 0%, 0%, 0%, 100% 82.4%, 0.0%, 58.0%, 26.3%
OKLCH 0.0 0.0 0.0 0.6967 0.194 147.6

Contrast & Accessibility

8.37:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21BC4F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21BC4F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21BC4F);
background: linear-gradient(135deg, #000000, #21BC4F);

Explore Each Color

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