black

#000000

#378CB2

#378CB2

Contrast Ratio

5.56:1

Delta E

62.69

Very Different

50:50 Mix

Color Values

Format #000000 #378CB2
HEX #000000 #378CB2
RGB 0, 0, 0 55, 140, 178
HSL 0.0, 0.0%, 0.0% 198.5, 52.8%, 45.7%
HSV 0.0, 0.0%, 0.0% 198.5, 69.1%, 69.8%
CMYK 0%, 0%, 0%, 100% 69.1%, 21.3%, 0.0%, 30.2%
OKLCH 0.0 0.0 0.0 0.6051 0.0988 231.0

Contrast & Accessibility

5.56:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378CB2 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378CB2

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378CB2);
background: linear-gradient(135deg, #000000, #378CB2);

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