black

#000000

#637DFF

#637DFF

Contrast Ratio

5.91:1

Delta E

93.02

Very Different

50:50 Mix

Color Values

Format #000000 #637DFF
HEX #000000 #637DFF
RGB 0, 0, 0 99, 125, 255
HSL 0.0, 0.0%, 0.0% 230.0, 100.0%, 69.4%
HSV 0.0, 0.0%, 0.0% 230.0, 61.2%, 100.0%
CMYK 0%, 0%, 0%, 100% 61.2%, 51.0%, 0.0%, 0.0%
OKLCH 0.0 0.0 0.0 0.6372 0.1941 271.4

Contrast & Accessibility

5.91:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637DFF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637DFF

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

Explore Each Color

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