black

#000000

#663B71

#663B71

Contrast Ratio

2.43:1

Delta E

49.14

Very Different

50:50 Mix

Color Values

Format #000000 #663B71
HEX #000000 #663B71
RGB 0, 0, 0 102, 59, 113
HSL 0.0, 0.0%, 0.0% 287.8, 31.4%, 33.7%
HSV 0.0, 0.0%, 0.0% 287.8, 47.8%, 44.3%
CMYK 0%, 0%, 0%, 100% 9.7%, 47.8%, 0.0%, 55.7%
OKLCH 0.0 0.0 0.0 0.4268 0.0997 319.2

Contrast & Accessibility

2.43:1
AA Fail AA Large Fail AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #663B71 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #663B71

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #663B71);
background: linear-gradient(135deg, #000000, #663B71);

Explore Each Color

Related Comparisons