black

#000000

#EF1413

#EF1413

Contrast Ratio

4.78:1

Delta E

107.76

Very Different

50:50 Mix

Color Values

Format #000000 #EF1413
HEX #000000 #EF1413
RGB 0, 0, 0 239, 20, 19
HSL 0.0, 0.0%, 0.0% 0.3, 87.3%, 50.6%
HSV 0.0, 0.0%, 0.0% 0.3, 92.1%, 93.7%
CMYK 0%, 0%, 0%, 100% 0.0%, 91.6%, 92.1%, 6.3%
OKLCH 0.0 0.0 0.0 0.6029 0.2403 28.7

Contrast & Accessibility

4.78:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #EF1413 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #EF1413

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #EF1413);
background: linear-gradient(135deg, #000000, #EF1413);

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