black

#000000

#F23939

#F23939

Contrast Ratio

5.42:1

Delta E

98.09

Very Different

50:50 Mix

Color Values

Format #000000 #F23939
HEX #000000 #F23939
RGB 0, 0, 0 242, 57, 57
HSL 0.0, 0.0%, 0.0% 0.0, 87.7%, 58.6%
HSV 0.0, 0.0%, 0.0% 0.0, 76.4%, 94.9%
CMYK 0%, 0%, 0%, 100% 0.0%, 76.4%, 76.4%, 5.1%
OKLCH 0.0 0.0 0.0 0.6312 0.2206 26.3

Contrast & Accessibility

5.42:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #F23939 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #F23939

Color Difference (Delta E)

98.09 Very Different
0 — Identical 5 — Similar 25 — Noticeable 100 — Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #F23939);
background: linear-gradient(135deg, #000000, #F23939);

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