black

#000000

#137F9B

#137F9B

Contrast Ratio

4.54:1

Delta E

57.15

Very Different

50:50 Mix

Color Values

Format #000000 #137F9B
HEX #000000 #137F9B
RGB 0, 0, 0 19, 127, 155
HSL 0.0, 0.0%, 0.0% 192.4, 78.2%, 34.1%
HSV 0.0, 0.0%, 0.0% 192.4, 87.7%, 60.8%
CMYK 0%, 0%, 0%, 100% 87.7%, 18.1%, 0.0%, 39.2%
OKLCH 0.0 0.0 0.0 0.5539 0.0976 221.4

Contrast & Accessibility

4.54:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #137F9B → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #137F9B

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #137F9B);
background: linear-gradient(135deg, #000000, #137F9B);

Explore Each Color

Related Comparisons