black

#000000

#644D9F

#644D9F

Contrast Ratio

3.1:1

Delta E

63.71

Very Different

50:50 Mix

Color Values

Format #000000 #644D9F
HEX #000000 #644D9F
RGB 0, 0, 0 100, 77, 159
HSL 0.0, 0.0%, 0.0% 256.8, 34.7%, 46.3%
HSV 0.0, 0.0%, 0.0% 256.8, 51.6%, 62.4%
CMYK 0%, 0%, 0%, 100% 37.1%, 51.6%, 0.0%, 37.6%
OKLCH 0.0 0.0 0.0 0.484 0.1281 294.0

Contrast & Accessibility

3.1:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #644D9F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #644D9F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #644D9F);
background: linear-gradient(135deg, #000000, #644D9F);

Explore Each Color

Related Comparisons