black

#000000

#EF2525

#EF2525

Contrast Ratio

4.96:1

Delta E

102.97

Very Different

50:50 Mix

Color Values

Format #000000 #EF2525
HEX #000000 #EF2525
RGB 0, 0, 0 239, 37, 37
HSL 0.0, 0.0%, 0.0% 0.0, 86.3%, 54.1%
HSV 0.0, 0.0%, 0.0% 0.0, 84.5%, 93.7%
CMYK 0%, 0%, 0%, 100% 0.0%, 84.5%, 84.5%, 6.3%
OKLCH 0.0 0.0 0.0 0.6109 0.2323 27.7

Contrast & Accessibility

4.96:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #EF2525 β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #EF2525

Color Difference (Delta E)

102.97 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, #EF2525);
background: linear-gradient(135deg, #000000, #EF2525);

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