black

#000000

#397BD1

#397BD1

Contrast Ratio

4.93:1

Delta E

72.49

Very Different

50:50 Mix

Color Values

Format #000000 #397BD1
HEX #000000 #397BD1
RGB 0, 0, 0 57, 123, 209
HSL 0.0, 0.0%, 0.0% 213.9, 62.3%, 52.2%
HSV 0.0, 0.0%, 0.0% 213.9, 72.7%, 82.0%
CMYK 0%, 0%, 0%, 100% 72.7%, 41.1%, 0.0%, 18.0%
OKLCH 0.0 0.0 0.0 0.5833 0.1484 256.2

Contrast & Accessibility

4.93:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #397BD1 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397BD1

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397BD1);
background: linear-gradient(135deg, #000000, #397BD1);

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