black

#000000

#C51F37

#C51F37

Contrast Ratio

3.63:1

Delta E

82.03

Very Different

50:50 Mix

Color Values

Format #000000 #C51F37
HEX #000000 #C51F37
RGB 0, 0, 0 197, 31, 55
HSL 0.0, 0.0%, 0.0% 351.3, 72.8%, 44.7%
HSV 0.0, 0.0%, 0.0% 351.3, 84.3%, 77.3%
CMYK 0%, 0%, 0%, 100% 0.0%, 84.3%, 72.1%, 22.7%
OKLCH 0.0 0.0 0.0 0.5328 0.1973 20.8

Contrast & Accessibility

3.63:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #C51F37 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #C51F37

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #C51F37);
background: linear-gradient(135deg, #000000, #C51F37);

Explore Each Color

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