black

#000000

#66CBDF

#66CBDF

Contrast Ratio

11.17:1

Delta E

82.45

Very Different

50:50 Mix

Color Values

Format #000000 #66CBDF
HEX #000000 #66CBDF
RGB 0, 0, 0 102, 203, 223
HSL 0.0, 0.0%, 0.0% 189.9, 65.4%, 63.7%
HSV 0.0, 0.0%, 0.0% 189.9, 54.3%, 87.5%
CMYK 0%, 0%, 0%, 100% 54.3%, 9.0%, 0.0%, 12.5%
OKLCH 0.0 0.0 0.0 0.7889 0.0981 212.3

Contrast & Accessibility

11.17:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #66CBDF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #66CBDF

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #66CBDF);
background: linear-gradient(135deg, #000000, #66CBDF);

Explore Each Color

Related Comparisons