black

#000000

#637BBA

#637BBA

Contrast Ratio

5.07:1

Delta E

63.95

Very Different

50:50 Mix

Color Values

Format #000000 #637BBA
HEX #000000 #637BBA
RGB 0, 0, 0 99, 123, 186
HSL 0.0, 0.0%, 0.0% 223.4, 38.7%, 55.9%
HSV 0.0, 0.0%, 0.0% 223.4, 46.8%, 72.9%
CMYK 0%, 0%, 0%, 100% 46.8%, 33.9%, 0.0%, 27.1%
OKLCH 0.0 0.0 0.0 0.5912 0.1009 267.4

Contrast & Accessibility

5.07:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637BBA → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637BBA

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

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