black

#000000

#21CF25

#21CF25

Contrast Ratio

10.02:1

Delta E

120.8

Very Different

50:50 Mix

Color Values

Format #000000 #21CF25
HEX #000000 #21CF25
RGB 0, 0, 0 33, 207, 37
HSL 0.0, 0.0%, 0.0% 121.4, 72.5%, 47.1%
HSV 0.0, 0.0%, 0.0% 121.4, 84.1%, 81.2%
CMYK 0%, 0%, 0%, 100% 84.1%, 0.0%, 82.1%, 18.8%
OKLCH 0.0 0.0 0.0 0.7438 0.2401 142.9

Contrast & Accessibility

10.02:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21CF25 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21CF25

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21CF25);
background: linear-gradient(135deg, #000000, #21CF25);

Explore Each Color

Related Comparisons