#663CA4#663CA4

#663CA4 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.1% C 0.161 H 298.5°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#663CA4
RGB	rgb(102, 60, 164)
HSL	hsl(264, 46%, 44%)
HSV	hsv(264, 63%, 64%)
CMYK	cmyk(37.8%, 63.4%, 0%, 35.7%)
CIE-LAB	lab(35.47, 40.90, -49.65)
CIE-LCH	lch(35.47, 64.32, 309.48°)
OKLab	oklab(46.13% 0.0766 -0.1412)
OKLCH	oklch(46.13% 0.161 298.5)
XYZ	xyz(13.7945, 8.7367, 36.0743)
Luminance	0.0874 (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

#663CA4 #7AA43C

analogous

#3C46A4 #663CA4 #9A3CA4

triadic

#663CA4 #A4663C #3CA466

tetradic

#663CA4 #A43C46 #7AA43C #3CA49A

square

#663CA4 #A43C46 #7AA43C #3CA49A

split-complementary

#663CA4 #A49A3C #46A43C

monochromatic

#2E1B4A #4A2C77 #663CA4 #855AC3 #A687D3

Accessibility & contrast

On white

7.64

#663CA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#663CA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CA4

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CA4	#FFFFFF	#000000	##FFFFFF
##663CA4	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A7

Deuteranopia (green-blind)

#0A52A2

Tritanopia (blue-blind)

#58536A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #663ca4;
/* rgb */ color: rgb(102, 60, 164);
/* oklch */ color: oklch(46.1% 0.161 298.5);

Tailwind

colors: {
  custom: {
    50: '#9674c0',
    500: '#663ca4',
    950: '#000000',
  },
}

SCSS

$custom: #663ca4;
$custom-light: #9674c0;
$custom-dark: #000000;

JSON

{
  "hex": "#663ca4",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 164
  },
  "hsl": {
    "h": 264.231,
    "s": 46.429,
    "l": 43.922
  },
  "oklch": {
    "l": 0.46133,
    "c": 0.16066,
    "h": 298.5
  },
  "luminance": 0.08737
}

Semantic roles & 50–950 ramp

primary

#663CA4

secondary

#A4BD7E

accent

#D652A1

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663CA4

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

Preview Lab → · Contrast checker → · Palette generator →