#663CA9#663CA9

#663CA9 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.5% C 0.167 H 297.2°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#663CA9
RGB	rgb(102, 60, 169)
HSL	hsl(263, 48%, 45%)
HSV	hsv(263, 64%, 66%)
CMYK	cmyk(39.6%, 64.5%, 0%, 33.7%)
CIE-LAB	lab(35.83, 42.24, -52.06)
CIE-LCH	lch(35.83, 67.04, 309.05°)
OKLab	oklab(46.51% 0.0762 -0.1483)
OKLCH	oklch(46.51% 0.167 297.2)
XYZ	xyz(14.2549, 8.9208, 38.4993)
Luminance	0.0892 (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

#663CA9 #7FA93C

analogous

#3C49A9 #663CA9 #9C3CA9

triadic

#663CA9 #A9663C #3CA966

tetradic

#663CA9 #A93C49 #7FA93C #3CA99C

square

#663CA9 #A93C49 #7FA93C #3CA99C

split-complementary

#663CA9 #A99C3C #49A93C

monochromatic

#2F1C4F #4B2C7C #663CA9 #855DC5 #A78AD5

Accessibility & contrast

On white

7.54

#663CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#663CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CA9

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CA9	#FFFFFF	#000000	##FFFFFF
##663CA9	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AC

Deuteranopia (green-blind)

#0053A7

Tritanopia (blue-blind)

#56556D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663ca9;
/* rgb */ color: rgb(102, 60, 169);
/* oklch */ color: oklch(46.5% 0.167 297.2);

Tailwind

colors: {
  custom: {
    50: '#9774c3',
    500: '#663ca9',
    950: '#000000',
  },
}

SCSS

$custom: #663ca9;
$custom-light: #9774c3;
$custom-dark: #000000;

JSON

{
  "hex": "#663ca9",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 169
  },
  "hsl": {
    "h": 263.119,
    "s": 47.598,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46507,
    "c": 0.16676,
    "h": 297.2
  },
  "luminance": 0.08921
}

Semantic roles & 50–950 ramp

primary

#663CA9

secondary

#A8C081

accent

#D751A3

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663CA9

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

Preview Lab → · Contrast checker → · Palette generator →