black

#000000

#378AB9

#378AB9

Contrast Ratio

5.5:1

Delta E

63.88

Very Different

50:50 Mix

Color Values

Format #000000 #378AB9
HEX #000000 #378AB9
RGB 0, 0, 0 55, 138, 185
HSL 0.0, 0.0%, 0.0% 201.7, 54.2%, 47.1%
HSV 0.0, 0.0%, 0.0% 201.7, 70.3%, 72.5%
CMYK 0%, 0%, 0%, 100% 70.3%, 25.4%, 0.0%, 27.5%
OKLCH 0.0 0.0 0.0 0.6037 0.1066 237.3

Contrast & Accessibility

5.5:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378AB9 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378AB9

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378AB9);
background: linear-gradient(135deg, #000000, #378AB9);

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