black

#000000

#C51F12

#C51F12

Contrast Ratio

3.58:1

Delta E

90.13

Very Different

50:50 Mix

Color Values

Format #000000 #C51F12
HEX #000000 #C51F12
RGB 0, 0, 0 197, 31, 18
HSL 0.0, 0.0%, 0.0% 4.4, 83.3%, 42.2%
HSV 0.0, 0.0%, 0.0% 4.4, 90.9%, 77.3%
CMYK 0%, 0%, 0%, 100% 0.0%, 84.3%, 90.9%, 22.7%
OKLCH 0.0 0.0 0.0 0.5291 0.2005 29.8

Contrast & Accessibility

3.58:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #C51F12 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #C51F12

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #C51F12);
background: linear-gradient(135deg, #000000, #C51F12);

Explore Each Color

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