black

#000000

#E71831

#E71831

Contrast Ratio

4.57:1

Delta E

97.91

Very Different

50:50 Mix

Color Values

Format #000000 #E71831
HEX #000000 #E71831
RGB 0, 0, 0 231, 24, 49
HSL 0.0, 0.0%, 0.0% 352.8, 81.2%, 50.0%
HSV 0.0, 0.0%, 0.0% 352.8, 89.6%, 90.6%
CMYK 0%, 0%, 0%, 100% 0.0%, 89.6%, 78.8%, 9.4%
OKLCH 0.0 0.0 0.0 0.5916 0.2302 23.9

Contrast & Accessibility

4.57:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #E71831 β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #E71831

Color Difference (Delta E)

97.91 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, #E71831);
background: linear-gradient(135deg, #000000, #E71831);

Explore Each Color

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