black

#000000

#397DA3

#397DA3

Contrast Ratio

4.64:1

Delta E

57.18

Very Different

50:50 Mix

Color Values

Format #000000 #397DA3
HEX #000000 #397DA3
RGB 0, 0, 0 57, 125, 163
HSL 0.0, 0.0%, 0.0% 201.5, 48.2%, 43.1%
HSV 0.0, 0.0%, 0.0% 201.5, 65.0%, 63.9%
CMYK 0%, 0%, 0%, 100% 65.0%, 23.3%, 0.0%, 36.1%
OKLCH 0.0 0.0 0.0 0.5624 0.0903 236.0

Contrast & Accessibility

4.64:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #397DA3 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397DA3

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397DA3);
background: linear-gradient(135deg, #000000, #397DA3);

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