black

#000000

#511003

#511003

Contrast Ratio

1.43:1

Delta E

40.85

Very Different

50:50 Mix

Color Values

Format #000000 #511003
HEX #000000 #511003
RGB 0, 0, 0 81, 16, 3
HSL 0.0, 0.0%, 0.0% 10.0, 92.9%, 16.5%
HSV 0.0, 0.0%, 0.0% 10.0, 96.3%, 31.8%
CMYK 0%, 0%, 0%, 100% 0.0%, 80.2%, 96.3%, 68.2%
OKLCH 0.0 0.0 0.0 0.2883 0.0983 33.8

Contrast & Accessibility

1.43:1
AA Fail AA Large Fail AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #511003 β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #511003

Color Difference (Delta E)

40.85 Very Different
0 β€” Identical 5 β€” Similar 25 β€” Noticeable 100 β€” Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #511003);
background: linear-gradient(135deg, #000000, #511003);

Explore Each Color

Related Comparisons