black

#000000

#637DCC

#637DCC

Contrast Ratio

5.34:1

Delta E

70.53

Very Different

50:50 Mix

Color Values

Format #000000 #637DCC
HEX #000000 #637DCC
RGB 0, 0, 0 99, 125, 204
HSL 0.0, 0.0%, 0.0% 225.1, 50.7%, 59.4%
HSV 0.0, 0.0%, 0.0% 225.1, 51.5%, 80.0%
CMYK 0%, 0%, 0%, 100% 51.5%, 38.7%, 0.0%, 20.0%
OKLCH 0.0 0.0 0.0 0.6053 0.1242 268.7

Contrast & Accessibility

5.34:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637DCC → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637DCC

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

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