#663CA8#663CA8

#663CA8 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.4% C 0.166 H 297.4°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#663CA8
RGB	rgb(102, 60, 168)
HSL	hsl(263, 47%, 45%)
HSV	hsv(263, 64%, 66%)
CMYK	cmyk(39.3%, 64.3%, 0%, 34.1%)
CIE-LAB	lab(35.76, 41.97, -51.58)
CIE-LCH	lch(35.76, 66.50, 309.14°)
OKLab	oklab(46.43% 0.0763 -0.1469)
OKLCH	oklch(46.43% 0.166 297.4)
XYZ	xyz(14.1614, 8.8834, 38.0068)
Luminance	0.0888 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CA8 #7EA83C

analogous

#3C48A8 #663CA8 #9C3CA8

triadic

#663CA8 #A8663C #3CA866

tetradic

#663CA8 #A83C48 #7EA83C #3CA89C

square

#663CA8 #A83C48 #7EA83C #3CA89C

split-complementary

#663CA8 #A89C3C #48A83C

monochromatic

#2F1C4E #4B2C7B #663CA8 #855CC5 #A789D5

Accessibility & contrast

On white

7.56

#663CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#663CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CA8

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CA8	#FFFFFF	#000000	##FFFFFF
##663CA8	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#56546C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663ca8;
/* rgb */ color: rgb(102, 60, 168);
/* oklch */ color: oklch(46.4% 0.166 297.4);

Tailwind

colors: {
  custom: {
    50: '#9774c3',
    500: '#663ca8',
    950: '#000000',
  },
}

SCSS

$custom: #663ca8;
$custom-light: #9774c3;
$custom-dark: #000000;

JSON

{
  "hex": "#663ca8",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 168
  },
  "hsl": {
    "h": 263.333,
    "s": 47.368,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46432,
    "c": 0.16554,
    "h": 297.4
  },
  "luminance": 0.08884
}

Semantic roles & 50–950 ramp

primary

#663CA8

secondary

#A7BF80

accent

#D751A3

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663CA8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →