black

#000000

#378BB8

#378BB8

Contrast Ratio

5.55:1

Delta E

63.77

Very Different

50:50 Mix

Color Values

Format #000000 #378BB8
HEX #000000 #378BB8
RGB 0, 0, 0 55, 139, 184
HSL 0.0, 0.0%, 0.0% 200.9, 54.0%, 46.9%
HSV 0.0, 0.0%, 0.0% 200.9, 70.1%, 72.2%
CMYK 0%, 0%, 0%, 100% 70.1%, 24.5%, 0.0%, 27.8%
OKLCH 0.0 0.0 0.0 0.6056 0.105 235.8

Contrast & Accessibility

5.55:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378BB8 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378BB8

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378BB8);
background: linear-gradient(135deg, #000000, #378BB8);

Explore Each Color

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