black

#000000

#21D81F

#21D81F

Contrast Ratio

10.91:1

Delta E

126.34

Very Different

50:50 Mix

Color Values

Format #000000 #21D81F
HEX #000000 #21D81F
RGB 0, 0, 0 33, 216, 31
HSL 0.0, 0.0%, 0.0% 119.4, 74.9%, 48.4%
HSV 0.0, 0.0%, 0.0% 119.4, 85.6%, 84.7%
CMYK 0%, 0%, 0%, 100% 84.7%, 0.0%, 85.6%, 15.3%
OKLCH 0.0 0.0 0.0 0.7674 0.251 142.6

Contrast & Accessibility

10.91:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21D81F β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #21D81F

Color Difference (Delta E)

126.34 Very Different
0 β€” Identical 5 β€” Similar 25 β€” Noticeable 100 β€” Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21D81F);
background: linear-gradient(135deg, #000000, #21D81F);

Explore Each Color

Related Comparisons