black

#000000

#51BDEC

#51BDEC

Contrast Ratio

9.84:1

Delta E

81.05

Very Different

50:50 Mix

Color Values

Format #000000 #51BDEC
HEX #000000 #51BDEC
RGB 0, 0, 0 81, 189, 236
HSL 0.0, 0.0%, 0.0% 198.2, 80.3%, 62.2%
HSV 0.0, 0.0%, 0.0% 198.2, 65.7%, 92.5%
CMYK 0%, 0%, 0%, 100% 65.7%, 19.9%, 0.0%, 7.5%
OKLCH 0.0 0.0 0.0 0.7547 0.1188 230.0

Contrast & Accessibility

9.84:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #51BDEC → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #51BDEC

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

Explore Each Color

Related Comparisons