black

#000000

#337FA3

#337FA3

Contrast Ratio

4.71:1

Delta E

57.65

Very Different

50:50 Mix

Color Values

Format #000000 #337FA3
HEX #000000 #337FA3
RGB 0, 0, 0 51, 127, 163
HSL 0.0, 0.0%, 0.0% 199.3, 52.3%, 42.0%
HSV 0.0, 0.0%, 0.0% 199.3, 68.7%, 63.9%
CMYK 0%, 0%, 0%, 100% 68.7%, 22.1%, 0.0%, 36.1%
OKLCH 0.0 0.0 0.0 0.5651 0.0923 232.3

Contrast & Accessibility

4.71:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #337FA3 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #337FA3

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #337FA3);
background: linear-gradient(135deg, #000000, #337FA3);

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