black

#000000

#378AB8

#378AB8

Contrast Ratio

5.49:1

Delta E

63.65

Very Different

50:50 Mix

Color Values

Format #000000 #378AB8
HEX #000000 #378AB8
RGB 0, 0, 0 55, 138, 184
HSL 0.0, 0.0%, 0.0% 201.4, 54.0%, 46.9%
HSV 0.0, 0.0%, 0.0% 201.4, 70.1%, 72.2%
CMYK 0%, 0%, 0%, 100% 70.1%, 25.0%, 0.0%, 27.8%
OKLCH 0.0 0.0 0.0 0.6032 0.1056 236.7

Contrast & Accessibility

5.49:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378AB8 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378AB8

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378AB8);
background: linear-gradient(135deg, #000000, #378AB8);

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