black

#000000

#637CAD

#637CAD

Contrast Ratio

5.02:1

Delta E

59.55

Very Different

50:50 Mix

Color Values

Format #000000 #637CAD
HEX #000000 #637CAD
RGB 0, 0, 0 99, 124, 173
HSL 0.0, 0.0%, 0.0% 219.7, 31.1%, 53.3%
HSV 0.0, 0.0%, 0.0% 219.7, 42.8%, 67.8%
CMYK 0%, 0%, 0%, 100% 42.8%, 28.3%, 0.0%, 32.2%
OKLCH 0.0 0.0 0.0 0.5868 0.0811 263.3

Contrast & Accessibility

5.02:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637CAD → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637CAD

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

Explore Each Color

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