black

#000000

#397AD0

#397AD0

Contrast Ratio

4.87:1

Delta E

72.25

Very Different

50:50 Mix

Color Values

Format #000000 #397AD0
HEX #000000 #397AD0
RGB 0, 0, 0 57, 122, 208
HSL 0.0, 0.0%, 0.0% 214.2, 61.6%, 52.0%
HSV 0.0, 0.0%, 0.0% 214.2, 72.6%, 81.6%
CMYK 0%, 0%, 0%, 100% 72.6%, 41.3%, 0.0%, 18.4%
OKLCH 0.0 0.0 0.0 0.5805 0.1481 256.5

Contrast & Accessibility

4.87:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #397AD0 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #397AD0

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #397AD0);
background: linear-gradient(135deg, #000000, #397AD0);

Explore Each Color

Related Comparisons