black

#000000

#21B33B

#21B33B

Contrast Ratio

7.58:1

Delta E

100.86

Very Different

50:50 Mix

Color Values

Format #000000 #21B33B
HEX #000000 #21B33B
RGB 0, 0, 0 33, 179, 59
HSL 0.0, 0.0%, 0.0% 130.7, 68.9%, 41.6%
HSV 0.0, 0.0%, 0.0% 130.7, 81.6%, 70.2%
CMYK 0%, 0%, 0%, 100% 81.6%, 0.0%, 67.0%, 29.8%
OKLCH 0.0 0.0 0.0 0.6703 0.1987 145.1

Contrast & Accessibility

7.58:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21B33B → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21B33B

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21B33B);
background: linear-gradient(135deg, #000000, #21B33B);

Explore Each Color

Related Comparisons