black

#000000

#428FDF

#428FDF

Contrast Ratio

6.23:1

Delta E

75.19

Very Different

50:50 Mix

Color Values

Format #000000 #428FDF
HEX #000000 #428FDF
RGB 0, 0, 0 66, 143, 223
HSL 0.0, 0.0%, 0.0% 210.6, 71.0%, 56.7%
HSV 0.0, 0.0%, 0.0% 210.6, 70.4%, 87.5%
CMYK 0%, 0%, 0%, 100% 70.4%, 35.9%, 0.0%, 12.5%
OKLCH 0.0 0.0 0.0 0.6391 0.1425 251.8

Contrast & Accessibility

6.23:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #428FDF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #428FDF

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

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

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