black

#000000

#3F818F

#3F818F

Contrast Ratio

4.75:1

Delta E

54.91

Very Different

50:50 Mix

Color Values

Format #000000 #3F818F
HEX #000000 #3F818F
RGB 0, 0, 0 63, 129, 143
HSL 0.0, 0.0%, 0.0% 190.5, 38.8%, 40.4%
HSV 0.0, 0.0%, 0.0% 190.5, 55.9%, 56.1%
CMYK 0%, 0%, 0%, 100% 55.9%, 9.8%, 0.0%, 43.9%
OKLCH 0.0 0.0 0.0 0.5657 0.0702 213.4

Contrast & Accessibility

4.75:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #3F818F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #3F818F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #3F818F);
background: linear-gradient(135deg, #000000, #3F818F);

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