black

#000000

#3F99C7

#3F99C7

Contrast Ratio

6.59:1

Delta E

68.7

Very Different

50:50 Mix

Color Values

Format #000000 #3F99C7
HEX #000000 #3F99C7
RGB 0, 0, 0 63, 153, 199
HSL 0.0, 0.0%, 0.0% 200.3, 54.8%, 51.4%
HSV 0.0, 0.0%, 0.0% 200.3, 68.3%, 78.0%
CMYK 0%, 0%, 0%, 100% 68.3%, 23.1%, 0.0%, 22.0%
OKLCH 0.0 0.0 0.0 0.6486 0.1089 234.4

Contrast & Accessibility

6.59:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #3F99C7 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #3F99C7

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #3F99C7);
background: linear-gradient(135deg, #000000, #3F99C7);

Explore Each Color

Related Comparisons