black

#000000

#637FDB

#637FDB

Contrast Ratio

5.59:1

Delta E

76.3

Very Different

50:50 Mix

Color Values

Format #000000 #637FDB
HEX #000000 #637FDB
RGB 0, 0, 0 99, 127, 219
HSL 0.0, 0.0%, 0.0% 226.0, 62.5%, 62.4%
HSV 0.0, 0.0%, 0.0% 226.0, 54.8%, 85.9%
CMYK 0%, 0%, 0%, 100% 54.8%, 42.0%, 0.0%, 14.1%
OKLCH 0.0 0.0 0.0 0.6181 0.1428 269.2

Contrast & Accessibility

5.59:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637FDB → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637FDB

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

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