black

#000000

#51DEF2

#51DEF2

Contrast Ratio

13.08:1

Delta E

90.3

Very Different

50:50 Mix

Color Values

Format #000000 #51DEF2
HEX #000000 #51DEF2
RGB 0, 0, 0 81, 222, 242
HSL 0.0, 0.0%, 0.0% 187.5, 86.1%, 63.3%
HSV 0.0, 0.0%, 0.0% 187.5, 66.5%, 94.9%
CMYK 0%, 0%, 0%, 100% 66.5%, 8.3%, 0.0%, 5.1%
OKLCH 0.0 0.0 0.0 0.8331 0.1216 208.5

Contrast & Accessibility

13.08:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #51DEF2 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #51DEF2

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #51DEF2);
background: linear-gradient(135deg, #000000, #51DEF2);

Explore Each Color

Related Comparisons