black

#000000

#397C9C

#397C9C

Contrast Ratio

4.54:1

Delta E

55.57

Very Different

50:50 Mix

Color Values

Format #000000 #397C9C
HEX #000000 #397C9C
RGB 0, 0, 0 57, 124, 156
HSL 0.0, 0.0%, 0.0% 199.4, 46.5%, 41.8%
HSV 0.0, 0.0%, 0.0% 199.4, 63.5%, 61.2%
CMYK 0%, 0%, 0%, 100% 63.5%, 20.5%, 0.0%, 38.8%
OKLCH 0.0 0.0 0.0 0.5566 0.0838 231.7

Contrast & Accessibility

4.54:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #397C9C → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397C9C

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397C9C);
background: linear-gradient(135deg, #000000, #397C9C);

Explore Each Color

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