black

#000000

#378AB4

#378AB4

Contrast Ratio

5.46:1

Delta E

62.77

Very Different

50:50 Mix

Color Values

Format #000000 #378AB4
HEX #000000 #378AB4
RGB 0, 0, 0 55, 138, 180
HSL 0.0, 0.0%, 0.0% 200.2, 53.2%, 46.1%
HSV 0.0, 0.0%, 0.0% 200.2, 69.4%, 70.6%
CMYK 0%, 0%, 0%, 100% 69.4%, 23.3%, 0.0%, 29.4%
OKLCH 0.0 0.0 0.0 0.6013 0.1016 234.2

Contrast & Accessibility

5.46:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378AB4 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378AB4

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378AB4);
background: linear-gradient(135deg, #000000, #378AB4);

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