black

#000000

#66566F

#66566F

Contrast Ratio

3.13:1

Delta E

42.36

Very Different

50:50 Mix

Color Values

Format #000000 #66566F
HEX #000000 #66566F
RGB 0, 0, 0 102, 86, 111
HSL 0.0, 0.0%, 0.0% 278.4, 12.7%, 38.6%
HSV 0.0, 0.0%, 0.0% 278.4, 22.5%, 43.5%
CMYK 0%, 0%, 0%, 100% 8.1%, 22.5%, 0.0%, 56.5%
OKLCH 0.0 0.0 0.0 0.4782 0.044 313.3

Contrast & Accessibility

3.13:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #66566F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #66566F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #66566F);
background: linear-gradient(135deg, #000000, #66566F);

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