black

#000000

#637DDF

#637DDF

Contrast Ratio

5.53:1

Delta E

78.49

Very Different

50:50 Mix

Color Values

Format #000000 #637DDF
HEX #000000 #637DDF
RGB 0, 0, 0 99, 125, 223
HSL 0.0, 0.0%, 0.0% 227.4, 66.0%, 63.1%
HSV 0.0, 0.0%, 0.0% 227.4, 55.6%, 87.5%
CMYK 0%, 0%, 0%, 100% 55.6%, 43.9%, 0.0%, 12.5%
OKLCH 0.0 0.0 0.0 0.6164 0.1508 270.3

Contrast & Accessibility

5.53:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637DDF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637DDF

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #637DDF);
background: linear-gradient(135deg, #000000, #637DDF);

Explore Each Color

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