black

#000000

RAL 2005 Luminous Orange

#FF2301

Contrast Ratio

5.49:1

Delta E

115.58

Very Different

50:50 Mix

Color Values

Format #000000 #FF2301
HEX #000000 #FF2301
RGB 0, 0, 0 255, 35, 1
HSL 0.0, 0.0%, 0.0% 8.0, 100.0%, 50.2%
HSV 0.0, 0.0%, 0.0% 8.0, 99.6%, 100.0%
CMYK 0%, 0%, 0%, 100% 0.0%, 86.3%, 99.6%, 0.0%
OKLCH 0.0 0.0 0.0 0.6374 0.2488 30.9

Contrast & Accessibility

5.49:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #FF2301 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #FF2301

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #FF2301);
background: linear-gradient(135deg, #000000, #FF2301);

Explore Each Color

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