black

#000000

#397ABC

#397ABC

Contrast Ratio

4.68:1

Delta E

64.48

Very Different

50:50 Mix

Color Values

Format #000000 #397ABC
HEX #000000 #397ABC
RGB 0, 0, 0 57, 122, 188
HSL 0.0, 0.0%, 0.0% 210.2, 53.5%, 48.0%
HSV 0.0, 0.0%, 0.0% 210.2, 69.7%, 73.7%
CMYK 0%, 0%, 0%, 100% 69.7%, 35.1%, 0.0%, 26.3%
OKLCH 0.0 0.0 0.0 0.5685 0.1221 251.1

Contrast & Accessibility

4.68:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #397ABC → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397ABC

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397ABC);
background: linear-gradient(135deg, #000000, #397ABC);

Explore Each Color

Related Comparisons