black

#000000

#3F55BC

#3F55BC

Contrast Ratio

3.24:1

Delta E

73.99

Very Different

50:50 Mix

Color Values

Format #000000 #3F55BC
HEX #000000 #3F55BC
RGB 0, 0, 0 63, 85, 188
HSL 0.0, 0.0%, 0.0% 229.4, 49.8%, 49.2%
HSV 0.0, 0.0%, 0.0% 229.4, 66.5%, 73.7%
CMYK 0%, 0%, 0%, 100% 66.5%, 54.8%, 0.0%, 26.3%
OKLCH 0.0 0.0 0.0 0.4915 0.1635 270.2

Contrast & Accessibility

3.24:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #3F55BC → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #3F55BC

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #3F55BC);
background: linear-gradient(135deg, #000000, #3F55BC);

Explore Each Color

Related Comparisons