black

#000000

#378A4F

#378A4F

Contrast Ratio

4.91:1

Delta E

68.8

Very Different

50:50 Mix

Color Values

Format #000000 #378A4F
HEX #000000 #378A4F
RGB 0, 0, 0 55, 138, 79
HSL 0.0, 0.0%, 0.0% 137.3, 43.0%, 37.8%
HSV 0.0, 0.0%, 0.0% 137.3, 60.1%, 54.1%
CMYK 0%, 0%, 0%, 100% 60.1%, 0.0%, 42.8%, 45.9%
OKLCH 0.0 0.0 0.0 0.5671 0.1211 150.3

Contrast & Accessibility

4.91:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #378A4F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #378A4F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #378A4F);
background: linear-gradient(135deg, #000000, #378A4F);

Explore Each Color

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