black

#000000

#CF3F11

#CF3F11

Contrast Ratio

4.37:1

Delta E

91.37

Very Different

50:50 Mix

Color Values

Format #000000 #CF3F11
HEX #000000 #CF3F11
RGB 0, 0, 0 207, 63, 17
HSL 0.0, 0.0%, 0.0% 14.5, 84.8%, 43.9%
HSV 0.0, 0.0%, 0.0% 14.5, 91.8%, 81.2%
CMYK 0%, 0%, 0%, 100% 0.0%, 69.6%, 91.8%, 18.8%
OKLCH 0.0 0.0 0.0 0.5734 0.1878 36.0

Contrast & Accessibility

4.37:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #CF3F11 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #CF3F11

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #CF3F11);
background: linear-gradient(135deg, #000000, #CF3F11);

Explore Each Color

Related Comparisons