#663399 - Rebecca Purple color

Deep, velvety violet with a cool blue undertone and warm red richness. It reads as a dignified, slightly muted purple—simultaneously regal and modern—evoking eggplant skins, twilight skies, and velvet upholstery. This shade feels mysterious and creative while remaining sophisticated and composed; it pairs beautifully with soft grays, creams, metallic golds, and pale pinks for contrast. Ideal for branding, interiors, or fashion when you want a bold yet refined color that suggests luxury, depth, and quiet confidence.

#663399 color RGB value is 102, 51, 153, and the CMYK value is 0.333, 0.667, 0.00, 0.400. Alternative names for that color are: rebecca purple, indigo, royal purple.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	102, 51, 153	rgb(102, 51, 153)
CMYK	0.333, 0.667, 0.00, 0.400	-
sRGB	0.400, 0.200, 0.600	rgb(40%, 20%, 60%)
Adobe® 98 RGB compatible	0.358, 0.212, 0.584	color(a98-rgb, 0.358, 0.212, 0.584)
HCT	310, 56.4, 32.9	color(--hct, 310, 38.9%, 32.9%)
HSL	270, 50.0, 40.0	hsl(270, 50%, 40%)
HSV	270, 66.7, 60.0	color(--hsv, 270, 66.7%, 60%)
HWB	270, 20.0, 40.0	hwb(270, 20%, 40%)
Lab	32.4, 38.4, -47.7	lab(32.4%, 38.4, -47.7)
P3	0.374, 0.210, 0.579	color(display-p3, 0.374, 0.21, 0.579)
XYZ D50	0.116, 0.0726, 0.233	color(xyz-d50, 0.116, 0.073, 0.233)