black

#000000

#FD4545

#FD4545

Contrast Ratio

6.11:1

Delta E

99.05

Very Different

50:50 Mix

Color Values

Format #000000 #FD4545
HEX #000000 #FD4545
RGB 0, 0, 0 253, 69, 69
HSL 0.0, 0.0%, 0.0% 0.0, 97.9%, 63.1%
HSV 0.0, 0.0%, 0.0% 0.0, 72.7%, 99.2%
CMYK 0%, 0%, 0%, 100% 0.0%, 72.7%, 72.7%, 0.8%
OKLCH 0.0 0.0 0.0 0.6612 0.2203 25.6

Contrast & Accessibility

6.11:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #FD4545 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #FD4545

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #FD4545);
background: linear-gradient(135deg, #000000, #FD4545);

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