black

#000000

#378C15

#378C15

Contrast Ratio

4.92:1

Delta E

85.45

Very Different

50:50 Mix

Color Values

Format #000000 #378C15
HEX #000000 #378C15
RGB 0, 0, 0 55, 140, 21
HSL 0.0, 0.0%, 0.0% 102.9, 73.9%, 31.6%
HSV 0.0, 0.0%, 0.0% 102.9, 85.0%, 54.9%
CMYK 0%, 0%, 0%, 100% 60.7%, 0.0%, 85.0%, 45.1%
OKLCH 0.0 0.0 0.0 0.5659 0.1688 139.0

Contrast & Accessibility

4.92:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378C15 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378C15

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378C15);
background: linear-gradient(135deg, #000000, #378C15);

Explore Each Color

Related Comparisons