black

#000000

#C51C07

#C51C07

Contrast Ratio

3.54:1

Delta E

92.38

Very Different

50:50 Mix

#611A0B

Color Values

Format #000000 #C51C07
HEX #000000 #C51C07
RGB 0, 0, 0 197, 28, 7
HSL 0.0, 0.0%, 0.0% 6.6, 93.1%, 40.0%
HSV 0.0, 0.0%, 0.0% 6.6, 96.4%, 77.3%
CMYK 0%, 0%, 0%, 100% 0.0%, 85.8%, 96.4%, 22.7%
OKLCH 0.0 0.0 0.0 0.5269 0.2028 30.7

Contrast & Accessibility

3.54:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #C51C07 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #C51C07

Color Difference (Delta E)

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

Gradient

#000000 #261005 #421609 #611A0B #811D0C #A21E0A #C51C07

Color Mixing

#000000

100%

#341307

75:25

#611A0B

50:50

#911D0B

25:75

#C51C07

100%

CSS Gradient Code

background: linear-gradient(to right, #000000, #C51C07);
background: linear-gradient(135deg, #000000, #C51C07);

Explore Each Color

black

View full color details

#C51C07

View full color details

Related Comparisons