black

#000000

#F21010

#F21010

Contrast Ratio

4.86:1

Delta E

109.63

Very Different

50:50 Mix

Color Values

Format #000000 #F21010
HEX #000000 #F21010
RGB 0, 0, 0 242, 16, 16
HSL 0.0, 0.0%, 0.0% 0.0, 89.7%, 50.6%
HSV 0.0, 0.0%, 0.0% 0.0, 93.4%, 94.9%
CMYK 0%, 0%, 0%, 100% 0.0%, 93.4%, 93.4%, 5.1%
OKLCH 0.0 0.0 0.0 0.6072 0.244 28.8

Contrast & Accessibility

4.86:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #F21010 β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #F21010

Color Difference (Delta E)

109.63 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, #F21010);
background: linear-gradient(135deg, #000000, #F21010);

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