black

#000000

#21B23C

#21B23C

Contrast Ratio

7.5:1

Delta E

100.04

Very Different

50:50 Mix

Color Values

Format #000000 #21B23C
HEX #000000 #21B23C
RGB 0, 0, 0 33, 178, 60
HSL 0.0, 0.0%, 0.0% 131.2, 68.7%, 41.4%
HSV 0.0, 0.0%, 0.0% 131.2, 81.5%, 69.8%
CMYK 0%, 0%, 0%, 100% 81.5%, 0.0%, 66.3%, 30.2%
OKLCH 0.0 0.0 0.0 0.6677 0.1968 145.3

Contrast & Accessibility

7.5:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #21B23C → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #21B23C

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #21B23C);
background: linear-gradient(135deg, #000000, #21B23C);

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