Close to Dark Slate Blue
#643A85
#643A85 is a dark, muted purple, close to the color Dark Slate Blue. In RGB it’s made of 39.2% red, 22.7% green, and 52.2% blue. Its hue is 274°, with 39% saturation and 37% lightness, so it reads as a cool color. White text sits best on top of it.
Color codes
Tints, shades & tones
Tints add white, shades add black, tones add gray. Tap any one to open its page.
Tints
Shades
Tones
Color harmonies
Combinations from the color wheel, built around #643A85.
Split complementary
The two neighbors of the complement: contrast that’s easier to balance.
Open in the palette creator →Tetradic
Two complementary pairs: rich, best with one color in charge.
Open in the palette creator →Contrast & readability
WCAG contrast ratios for text. 4.5:1 is the minimum for body text, 3:1 for large text.
White text on this color
8.45:1 AAABlack text on this color
2.49:1 FailThis color as text on white
8.45:1 AAAThis color as text on black
2.49:1 FailHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #643A85 as they’d see it.
#643A85 in use
A headline in this color
Body text stays dark for reading; the color carries buttons, links, and accents.
On a dark background
Get startedSimilar colors
Questions about #643A85
What color is #643A85?
#643A85 is a dark, muted purple, close to the color Dark Slate Blue. In RGB it’s made of 39.2% red, 22.7% green, and 52.2% blue. Its hue is 274°, with 39% saturation and 37% lightness, so it reads as a cool color. White text sits best on top of it.
What is #643A85 in RGB?
#643A85 is rgb(100, 58, 133): 100 red, 58 green, and 133 blue on a 0–255 scale.
What is #643A85 in CMYK?
Roughly cmyk(25, 56, 0, 48). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #643A85?
PANTONE 267 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #643A85?
Its complement #295805 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.