black

#000000

#638FD9

#638FD9

Contrast Ratio

6.46:1

Delta E

73.14

Very Different

50:50 Mix

Color Values

Format #000000 #638FD9
HEX #000000 #638FD9
RGB 0, 0, 0 99, 143, 217
HSL 0.0, 0.0%, 0.0% 217.6, 60.8%, 62.0%
HSV 0.0, 0.0%, 0.0% 217.6, 54.4%, 85.1%
CMYK 0%, 0%, 0%, 100% 54.4%, 34.1%, 0.0%, 14.9%
OKLCH 0.0 0.0 0.0 0.6505 0.1214 260.3

Contrast & Accessibility

6.46:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #638FD9 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #638FD9

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #638FD9);
background: linear-gradient(135deg, #000000, #638FD9);

Explore Each Color

Related Comparisons