black

#000000

#646E8F

#646E8F

Contrast Ratio

4.17:1

Delta E

50.77

Very Different

50:50 Mix

Color Values

Format #000000 #646E8F
HEX #000000 #646E8F
RGB 0, 0, 0 100, 110, 143
HSL 0.0, 0.0%, 0.0% 226.0, 17.7%, 47.6%
HSV 0.0, 0.0%, 0.0% 226.0, 30.1%, 56.1%
CMYK 0%, 0%, 0%, 100% 30.1%, 23.1%, 0.0%, 43.9%
OKLCH 0.0 0.0 0.0 0.5426 0.0532 271.5

Contrast & Accessibility

4.17:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #646E8F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #646E8F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #646E8F);
background: linear-gradient(135deg, #000000, #646E8F);

Explore Each Color

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