black

#000000

#666C7C

#666C7C

Contrast Ratio

4.0:1

Delta E

46.67

Very Different

50:50 Mix

#34363E

Color Values

Format #000000 #666C7C
HEX #000000 #666C7C
RGB 0, 0, 0 102, 108, 124
HSL 0.0, 0.0%, 0.0% 223.6, 9.7%, 44.3%
HSV 0.0, 0.0%, 0.0% 223.6, 17.7%, 48.6%
CMYK 0%, 0%, 0%, 100% 17.7%, 12.9%, 0.0%, 51.4%
OKLCH 0.0 0.0 0.0 0.5318 0.0261 269.2

Contrast & Accessibility

4.0:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #666C7C → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #666C7C

Color Difference (Delta E)

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

Gradient

#000000 #161719 #25262B #34363E #444852 #555966 #666C7C

Color Mixing

#000000

100%

#1D1E22

75:25

#34363E

50:50

#4C505C

25:75

#666C7C

100%

CSS Gradient Code

background: linear-gradient(to right, #000000, #666C7C);
background: linear-gradient(135deg, #000000, #666C7C);

Explore Each Color

black

View full color details

#666C7C

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