black

#000000

#51C7BC

#51C7BC

Contrast Ratio

10.25:1

Delta E

81.94

Very Different

50:50 Mix

Color Values

Format #000000 #51C7BC
HEX #000000 #51C7BC
RGB 0, 0, 0 81, 199, 188
HSL 0.0, 0.0%, 0.0% 174.4, 51.3%, 54.9%
HSV 0.0, 0.0%, 0.0% 174.4, 59.3%, 78.0%
CMYK 0%, 0%, 0%, 100% 59.3%, 0.0%, 5.5%, 22.0%
OKLCH 0.0 0.0 0.0 0.7601 0.1067 186.7

Contrast & Accessibility

10.25:1
AA Pass AA Large Pass AAA Pass AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #51C7BC → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #51C7BC

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #51C7BC);
background: linear-gradient(135deg, #000000, #51C7BC);

Explore Each Color

Related Comparisons