black

#000000

#428F7C

#428F7C

Contrast Ratio

5.45:1

Delta E

61.46

Very Different

50:50 Mix

Color Values

Format #000000 #428F7C
HEX #000000 #428F7C
RGB 0, 0, 0 66, 143, 124
HSL 0.0, 0.0%, 0.0% 165.2, 36.8%, 41.0%
HSV 0.0, 0.0%, 0.0% 165.2, 53.8%, 56.1%
CMYK 0%, 0%, 0%, 100% 53.8%, 0.0%, 13.3%, 43.9%
OKLCH 0.0 0.0 0.0 0.5957 0.0822 174.9

Contrast & Accessibility

5.45:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #428F7C → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #428F7C

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #428F7C);
background: linear-gradient(135deg, #000000, #428F7C);

Explore Each Color

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