black

#000000

#EF0107

#EF0107

Contrast Ratio

4.68:1

Delta E

110.29

Very Different

50:50 Mix

Color Values

Format #000000 #EF0107
HEX #000000 #EF0107
RGB 0, 0, 0 239, 1, 7
HSL 0.0, 0.0%, 0.0% 358.5, 99.2%, 47.1%
HSV 0.0, 0.0%, 0.0% 358.5, 99.6%, 93.7%
CMYK 0%, 0%, 0%, 100% 0.0%, 99.6%, 97.1%, 6.3%
OKLCH 0.0 0.0 0.0 0.5983 0.2449 28.8

Contrast & Accessibility

4.68:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #EF0107 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #EF0107

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #EF0107);
background: linear-gradient(135deg, #000000, #EF0107);

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