black

#000000

#397B9E

#397B9E

Contrast Ratio

4.5:1

Delta E

55.81

Very Different

50:50 Mix

Color Values

Format #000000 #397B9E
HEX #000000 #397B9E
RGB 0, 0, 0 57, 123, 158
HSL 0.0, 0.0%, 0.0% 200.8, 47.0%, 42.2%
HSV 0.0, 0.0%, 0.0% 200.8, 63.9%, 62.0%
CMYK 0%, 0%, 0%, 100% 63.9%, 22.2%, 0.0%, 38.0%
OKLCH 0.0 0.0 0.0 0.5551 0.0862 234.5

Contrast & Accessibility

4.5:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #397B9E → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397B9E

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397B9E);
background: linear-gradient(135deg, #000000, #397B9E);

Explore Each Color

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