black

#000000

#EF1B1B

#EF1B1B

Contrast Ratio

4.84:1

Delta E

105.81

Very Different

50:50 Mix

Color Values

Format #000000 #EF1B1B
HEX #000000 #EF1B1B
RGB 0, 0, 0 239, 27, 27
HSL 0.0, 0.0%, 0.0% 0.0, 86.9%, 52.2%
HSV 0.0, 0.0%, 0.0% 0.0, 88.7%, 93.7%
CMYK 0%, 0%, 0%, 100% 0.0%, 88.7%, 88.7%, 6.3%
OKLCH 0.0 0.0 0.0 0.6057 0.2375 28.3

Contrast & Accessibility

4.84:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #EF1B1B β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #EF1B1B

Color Difference (Delta E)

105.81 Very Different
0 β€” Identical 5 β€” Similar 25 β€” Noticeable 100 β€” Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #EF1B1B);
background: linear-gradient(135deg, #000000, #EF1B1B);

Explore Each Color

Related Comparisons