#663CAA#663CAA

#663CAA is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.6% C 0.168 H 296.9°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#663CAA
RGB	rgb(102, 60, 170)
HSL	hsl(263, 48%, 45%)
HSV	hsv(263, 65%, 67%)
CMYK	cmyk(40%, 64.7%, 0%, 33.3%)
CIE-LAB	lab(35.90, 42.51, -52.54)
CIE-LCH	lch(35.90, 67.58, 308.98°)
OKLab	oklab(46.58% 0.0761 -0.1497)
OKLCH	oklch(46.58% 0.168 296.9)
XYZ	xyz(14.3492, 8.9585, 38.9956)
Luminance	0.0896 (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

#663CAA #80AA3C

analogous

#3C49AA #663CAA #9D3CAA

triadic

#663CAA #AA663C #3CAA66

tetradic

#663CAA #AA3C49 #80AA3C #3CAA9D

square

#663CAA #AA3C49 #80AA3C #3CAA9D

split-complementary

#663CAA #AA9D3C #49AA3C

monochromatic

#301C50 #4B2C7D #663CAA #855DC6 #A78BD6

Accessibility & contrast

On white

7.52

#663CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#663CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CAA

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CAA	#FFFFFF	#000000	##FFFFFF
##663CAA	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#0053A8

Tritanopia (blue-blind)

#55556D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663caa;
/* rgb */ color: rgb(102, 60, 170);
/* oklch */ color: oklch(46.6% 0.168 296.9);

Tailwind

colors: {
  custom: {
    50: '#9774c4',
    500: '#663caa',
    950: '#000000',
  },
}

SCSS

$custom: #663caa;
$custom-light: #9774c4;
$custom-dark: #000000;

JSON

{
  "hex": "#663caa",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 170
  },
  "hsl": {
    "h": 262.909,
    "s": 47.826,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46583,
    "c": 0.16796,
    "h": 296.9
  },
  "luminance": 0.08959
}

Semantic roles & 50–950 ramp

primary

#663CAA

secondary

#A8C081

accent

#D750A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663CAA

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

Preview Lab → · Contrast checker → · Palette generator →