black

#000000

#378FCB

#378FCB

Contrast Ratio

5.95:1

Delta E

68.92

Very Different

50:50 Mix

Color Values

Format #000000 #378FCB
HEX #000000 #378FCB
RGB 0, 0, 0 55, 143, 203
HSL 0.0, 0.0%, 0.0% 204.3, 58.7%, 50.6%
HSV 0.0, 0.0%, 0.0% 204.3, 72.9%, 79.6%
CMYK 0%, 0%, 0%, 100% 72.9%, 29.6%, 0.0%, 20.4%
OKLCH 0.0 0.0 0.0 0.6247 0.1227 242.5

Contrast & Accessibility

5.95:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378FCB → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378FCB

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

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