black

#000000

#428FFF

#428FFF

Contrast Ratio

6.6:1

Delta E

87.65

Very Different

50:50 Mix

Color Values

Format #000000 #428FFF
HEX #000000 #428FFF
RGB 0, 0, 0 66, 143, 255
HSL 0.0, 0.0%, 0.0% 215.6, 100.0%, 62.9%
HSV 0.0, 0.0%, 0.0% 215.6, 74.1%, 100.0%
CMYK 0%, 0%, 0%, 100% 74.1%, 43.9%, 0.0%, 0.0%
OKLCH 0.0 0.0 0.0 0.6584 0.183 258.1

Contrast & Accessibility

6.6:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #428FFF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #428FFF

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #428FFF);
background: linear-gradient(135deg, #000000, #428FFF);

Explore Each Color

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