black

#000000

#66CF3C

#66CF3C

Contrast Ratio

10.56:1

Delta E

111.12

Very Different

50:50 Mix

Color Values

Format #000000 #66CF3C
HEX #000000 #66CF3C
RGB 0, 0, 0 102, 207, 60
HSL 0.0, 0.0%, 0.0% 102.9, 60.5%, 52.4%
HSV 0.0, 0.0%, 0.0% 102.9, 71.0%, 81.2%
CMYK 0%, 0%, 0%, 100% 50.7%, 0.0%, 71.0%, 18.8%
OKLCH 0.0 0.0 0.0 0.7632 0.2061 138.3

Contrast & Accessibility

10.56:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #66CF3C → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #66CF3C

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #66CF3C);
background: linear-gradient(135deg, #000000, #66CF3C);

Explore Each Color

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