black

#000000

#C51323

#C51323

Contrast Ratio

3.49:1

Delta E

87.17

Very Different

50:50 Mix

Color Values

Format #000000 #C51323
HEX #000000 #C51323
RGB 0, 0, 0 197, 19, 35
HSL 0.0, 0.0%, 0.0% 354.6, 82.4%, 42.4%
HSV 0.0, 0.0%, 0.0% 354.6, 90.4%, 77.3%
CMYK 0%, 0%, 0%, 100% 0.0%, 90.4%, 82.2%, 22.7%
OKLCH 0.0 0.0 0.0 0.5245 0.2046 25.3

Contrast & Accessibility

3.49:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #C51323 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #C51323

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #C51323);
background: linear-gradient(135deg, #000000, #C51323);

Explore Each Color

Related Comparisons