black

#000000

#51AC40

#51AC40

Contrast Ratio

7.32:1

Delta E

91.67

Very Different

50:50 Mix

Color Values

Format #000000 #51AC40
HEX #000000 #51AC40
RGB 0, 0, 0 81, 172, 64
HSL 0.0, 0.0%, 0.0% 110.6, 45.8%, 46.3%
HSV 0.0, 0.0%, 0.0% 110.6, 62.8%, 67.5%
CMYK 0%, 0%, 0%, 100% 52.9%, 0.0%, 62.8%, 32.5%
OKLCH 0.0 0.0 0.0 0.6652 0.1696 140.7

Contrast & Accessibility

7.32:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #51AC40 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #51AC40

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #51AC40);
background: linear-gradient(135deg, #000000, #51AC40);

Explore Each Color

Related Comparisons