black

#000000

#51DEDF

#51DEDF

Contrast Ratio

12.86:1

Delta E

90.14

Very Different

50:50 Mix

Color Values

Format #000000 #51DEDF
HEX #000000 #51DEDF
RGB 0, 0, 0 81, 222, 223
HSL 0.0, 0.0%, 0.0% 180.4, 68.9%, 59.6%
HSV 0.0, 0.0%, 0.0% 180.4, 63.7%, 87.5%
CMYK 0%, 0%, 0%, 100% 63.7%, 0.4%, 0.0%, 12.5%
OKLCH 0.0 0.0 0.0 0.8264 0.1191 195.8

Contrast & Accessibility

12.86:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #51DEDF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #51DEDF

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #51DEDF);
background: linear-gradient(135deg, #000000, #51DEDF);

Explore Each Color

Related Comparisons