black

#000000

#66637F

#66637F

Contrast Ratio

3.66:1

Delta E

46.38

Very Different

50:50 Mix

#34323F

Color Values

Format #000000 #66637F
HEX #000000 #66637F
RGB 0, 0, 0 102, 99, 127
HSL 0.0, 0.0%, 0.0% 246.4, 12.4%, 44.3%
HSV 0.0, 0.0%, 0.0% 246.4, 22.0%, 49.8%
CMYK 0%, 0%, 0%, 100% 19.7%, 22.0%, 0.0%, 50.2%
OKLCH 0.0 0.0 0.0 0.513 0.044 289.7

Contrast & Accessibility

3.66:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #66637F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #66637F

Color Difference (Delta E)

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

Gradient

#000000 #161519 #25242B #34323F #444253 #555269 #66637F

Color Mixing

#000000

100%

#1D1C22

75:25

#34323F

50:50

#4C4A5E

25:75

#66637F

100%

CSS Gradient Code

background: linear-gradient(to right, #000000, #66637F);
background: linear-gradient(135deg, #000000, #66637F);

Explore Each Color

black

View full color details

#66637F

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