black

#000000

#E40707

#E40707

Contrast Ratio

4.33:1

Delta E

105.86

Very Different

50:50 Mix

Color Values

Format #000000 #E40707
HEX #000000 #E40707
RGB 0, 0, 0 228, 7, 7
HSL 0.0, 0.0%, 0.0% 0.0, 94.0%, 46.1%
HSV 0.0, 0.0%, 0.0% 0.0, 96.9%, 89.4%
CMYK 0%, 0%, 0%, 100% 0.0%, 96.9%, 96.9%, 10.6%
OKLCH 0.0 0.0 0.0 0.5787 0.2351 29.0

Contrast & Accessibility

4.33:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #E40707 β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #E40707

Color Difference (Delta E)

105.86 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, #E40707);
background: linear-gradient(135deg, #000000, #E40707);

Explore Each Color

Related Comparisons