#663CA3#663CA3

#663CA3 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.1% C 0.159 H 298.7°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#663CA3
RGB	rgb(102, 60, 163)
HSL	hsl(264, 46%, 44%)
HSV	hsv(264, 63%, 64%)
CMYK	cmyk(37.4%, 63.2%, 0%, 36.1%)
CIE-LAB	lab(35.40, 40.63, -49.16)
CIE-LCH	lch(35.40, 63.78, 309.57°)
OKLab	oklab(46.06% 0.0767 -0.1398)
OKLCH	oklch(46.06% 0.159 298.7)
XYZ	xyz(13.7046, 8.7007, 35.6006)
Luminance	0.0870 (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

#663CA3 #79A33C

analogous

#3C45A3 #663CA3 #993CA3

triadic

#663CA3 #A3663C #3CA366

tetradic

#663CA3 #A33C45 #79A33C #3CA399

square

#663CA3 #A33C45 #79A33C #3CA399

split-complementary

#663CA3 #A3993C #45A33C

monochromatic

#2E1B4A #4A2C76 #663CA3 #845AC2 #A687D3

Accessibility & contrast

On white

7.66

#663CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#663CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CA3

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CA3	#FFFFFF	#000000	##FFFFFF
##663CA3	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A6

Deuteranopia (green-blind)

#0D52A1

Tritanopia (blue-blind)

#58536A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #663ca3;
/* rgb */ color: rgb(102, 60, 163);
/* oklch */ color: oklch(46.1% 0.159 298.7);

Tailwind

colors: {
  custom: {
    50: '#9674bf',
    500: '#663ca3',
    950: '#000000',
  },
}

SCSS

$custom: #663ca3;
$custom-light: #9674bf;
$custom-dark: #000000;

JSON

{
  "hex": "#663ca3",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 163
  },
  "hsl": {
    "h": 264.466,
    "s": 46.188,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4606,
    "c": 0.15943,
    "h": 298.7
  },
  "luminance": 0.08701
}

Semantic roles & 50–950 ramp

primary

#663CA3

secondary

#A3BD7E

accent

#D652A0

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663CA3

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

Preview Lab → · Contrast checker → · Palette generator →