black

#000000

#378DBD

#378DBD

Contrast Ratio

5.71:1

Delta E

65.16

Very Different

50:50 Mix

Color Values

Format #000000 #378DBD
HEX #000000 #378DBD
RGB 0, 0, 0 55, 141, 189
HSL 0.0, 0.0%, 0.0% 201.5, 54.9%, 47.8%
HSV 0.0, 0.0%, 0.0% 201.5, 70.9%, 74.1%
CMYK 0%, 0%, 0%, 100% 70.9%, 25.4%, 0.0%, 25.9%
OKLCH 0.0 0.0 0.0 0.6128 0.109 237.0

Contrast & Accessibility

5.71:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378DBD → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378DBD

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

Explore Each Color

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