black

#000000

#66DDF0

#66DDF0

Contrast Ratio

13.17:1

Delta E

89.08

Very Different

50:50 Mix

Color Values

Format #000000 #66DDF0
HEX #000000 #66DDF0
RGB 0, 0, 0 102, 221, 240
HSL 0.0, 0.0%, 0.0% 188.3, 82.1%, 67.1%
HSV 0.0, 0.0%, 0.0% 188.3, 57.5%, 94.1%
CMYK 0%, 0%, 0%, 100% 57.5%, 7.9%, 0.0%, 5.9%
OKLCH 0.0 0.0 0.0 0.8364 0.1095 209.4

Contrast & Accessibility

13.17:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #66DDF0 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #66DDF0

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #66DDF0);
background: linear-gradient(135deg, #000000, #66DDF0);

Explore Each Color

Related Comparisons