black

#000000

#178F72

#178F72

Contrast Ratio

5.21:1

Delta E

65.77

Very Different

50:50 Mix

Color Values

Format #000000 #178F72
HEX #000000 #178F72
RGB 0, 0, 0 23, 143, 114
HSL 0.0, 0.0%, 0.0% 165.5, 72.3%, 32.5%
HSV 0.0, 0.0%, 0.0% 165.5, 83.9%, 56.1%
CMYK 0%, 0%, 0%, 100% 83.9%, 0.0%, 20.3%, 43.9%
OKLCH 0.0 0.0 0.0 0.5812 0.1086 171.0

Contrast & Accessibility

5.21:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #178F72 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #178F72

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #178F72);
background: linear-gradient(135deg, #000000, #178F72);

Explore Each Color

Related Comparisons