black

#000000

#3F577F

#3F577F

Contrast Ratio

2.88:1

Delta E

44.73

Very Different

50:50 Mix

Color Values

Format #000000 #3F577F
HEX #000000 #3F577F
RGB 0, 0, 0 63, 87, 127
HSL 0.0, 0.0%, 0.0% 217.5, 33.7%, 37.3%
HSV 0.0, 0.0%, 0.0% 217.5, 50.4%, 49.8%
CMYK 0%, 0%, 0%, 100% 50.4%, 31.5%, 0.0%, 50.2%
OKLCH 0.0 0.0 0.0 0.4555 0.0721 260.3

Contrast & Accessibility

2.88:1
AA Fail AA Large Fail AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #3F577F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #3F577F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #3F577F);
background: linear-gradient(135deg, #000000, #3F577F);

Explore Each Color

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