black

#000000

#A31B21

#A31B21

Contrast Ratio

2.74:1

Delta E

72.21

Very Different

50:50 Mix

Color Values

Format #000000 #A31B21
HEX #000000 #A31B21
RGB 0, 0, 0 163, 27, 33
HSL 0.0, 0.0%, 0.0% 357.4, 71.6%, 37.3%
HSV 0.0, 0.0%, 0.0% 357.4, 83.4%, 63.9%
CMYK 0%, 0%, 0%, 100% 0.0%, 83.4%, 79.8%, 36.1%
OKLCH 0.0 0.0 0.0 0.4635 0.1702 25.3

Contrast & Accessibility

2.74:1
AA Fail AA Large Fail AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #A31B21 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #A31B21

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #A31B21);
background: linear-gradient(135deg, #000000, #A31B21);

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