black

#000000

#309DB1

#309DB1

Contrast Ratio

6.58:1

Delta E

67.07

Very Different

50:50 Mix

Color Values

Format #000000 #309DB1
HEX #000000 #309DB1
RGB 0, 0, 0 48, 157, 177
HSL 0.0, 0.0%, 0.0% 189.3, 57.3%, 44.1%
HSV 0.0, 0.0%, 0.0% 189.3, 72.9%, 69.4%
CMYK 0%, 0%, 0%, 100% 72.9%, 11.3%, 0.0%, 30.6%
OKLCH 0.0 0.0 0.0 0.6443 0.0992 212.6

Contrast & Accessibility

6.58:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #309DB1 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #309DB1

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #309DB1);
background: linear-gradient(135deg, #000000, #309DB1);

Explore Each Color

Related Comparisons