black

#000000

#638EF1

#638EF1

Contrast Ratio

6.67:1

Delta E

82.34

Very Different

50:50 Mix

Color Values

Format #000000 #638EF1
HEX #000000 #638EF1
RGB 0, 0, 0 99, 142, 241
HSL 0.0, 0.0%, 0.0% 221.8, 83.5%, 66.7%
HSV 0.0, 0.0%, 0.0% 221.8, 58.9%, 94.5%
CMYK 0%, 0%, 0%, 100% 58.9%, 41.1%, 0.0%, 5.5%
OKLCH 0.0 0.0 0.0 0.6618 0.155 264.8

Contrast & Accessibility

6.67:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #638EF1 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #638EF1

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #638EF1);
background: linear-gradient(135deg, #000000, #638EF1);

Explore Each Color

Related Comparisons