black

#000000

#21B280

#21B280

Contrast Ratio

7.74:1

Delta E

82.31

Very Different

50:50 Mix

Color Values

Format #000000 #21B280
HEX #000000 #21B280
RGB 0, 0, 0 33, 178, 128
HSL 0.0, 0.0%, 0.0% 159.3, 68.7%, 41.4%
HSV 0.0, 0.0%, 0.0% 159.3, 81.5%, 69.8%
CMYK 0%, 0%, 0%, 100% 81.5%, 0.0%, 28.1%, 30.2%
OKLCH 0.0 0.0 0.0 0.6792 0.1382 163.6

Contrast & Accessibility

7.74:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21B280 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21B280

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21B280);
background: linear-gradient(135deg, #000000, #21B280);

Explore Each Color

Related Comparisons