black

#000000

#F31617

#F31617

Contrast Ratio

4.94:1

Delta E

108.49

Very Different

50:50 Mix

Color Values

Format #000000 #F31617
HEX #000000 #F31617
RGB 0, 0, 0 243, 22, 23
HSL 0.0, 0.0%, 0.0% 359.7, 90.2%, 52.0%
HSV 0.0, 0.0%, 0.0% 359.7, 90.9%, 95.3%
CMYK 0%, 0%, 0%, 100% 0.0%, 90.9%, 90.5%, 4.7%
OKLCH 0.0 0.0 0.0 0.6111 0.2427 28.4

Contrast & Accessibility

4.94:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #F31617 β†’ Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 β†’ Background: #F31617

Color Difference (Delta E)

108.49 Very Different
0 β€” Identical 5 β€” Similar 25 β€” Noticeable 100 β€” Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #F31617);
background: linear-gradient(135deg, #000000, #F31617);

Explore Each Color

Related Comparisons