black

#000000

#21ED1F

#21ED1F

Contrast Ratio

13.2:1

Delta E

136.87

Very Different

50:50 Mix

Color Values

Format #000000 #21ED1F
HEX #000000 #21ED1F
RGB 0, 0, 0 33, 237, 31
HSL 0.0, 0.0%, 0.0% 119.4, 85.1%, 52.5%
HSV 0.0, 0.0%, 0.0% 119.4, 86.9%, 92.9%
CMYK 0%, 0%, 0%, 100% 86.1%, 0.0%, 86.9%, 7.1%
OKLCH 0.0 0.0 0.0 0.8223 0.271 142.6

Contrast & Accessibility

13.2:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21ED1F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21ED1F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21ED1F);
background: linear-gradient(135deg, #000000, #21ED1F);

Explore Each Color

Related Comparisons