Swatch
#663399 Rebecca Purple
#663399 is a mid-tone, rich purple, known as Rebecca Purple. In RGB it’s made of 40% red, 20% green, and 60% blue. Its hue is 270°, with 50% saturation and 40% 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 #663399.
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
8.41:1 AAABlack text on this color
2.50:1 FailThis color as text on white
8.41:1 AAAThis color as text on black
2.50:1 FailHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #663399 as they’d see it.
#663399 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 #663399
What color is #663399?
#663399 is a mid-tone, rich purple, known as Rebecca Purple. In RGB it’s made of 40% red, 20% green, and 60% blue. Its hue is 270°, with 50% saturation and 40% lightness, so it reads as a cool color. White text sits best on top of it.
What is #663399 in RGB?
#663399 is rgb(102, 51, 153): 102 red, 51 green, and 153 blue on a 0–255 scale.
What is #663399 in CMYK?
Roughly cmyk(33, 67, 0, 40). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #663399?
PANTONE 2612 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #663399?
Its complement #2D5800 gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.