black

#000000

#397D8F

#397D8F

Contrast Ratio

4.5:1

Delta E

53.91

Very Different

50:50 Mix

Color Values

Format #000000 #397D8F
HEX #000000 #397D8F
RGB 0, 0, 0 57, 125, 143
HSL 0.0, 0.0%, 0.0% 192.6, 43.0%, 39.2%
HSV 0.0, 0.0%, 0.0% 192.6, 60.1%, 56.1%
CMYK 0%, 0%, 0%, 100% 60.1%, 12.6%, 0.0%, 43.9%
OKLCH 0.0 0.0 0.0 0.5533 0.0736 217.7

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: #397D8F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397D8F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397D8F);
background: linear-gradient(135deg, #000000, #397D8F);

Explore Each Color

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