#663FAC#663FAC

#663FAC is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.2% C 0.166 H 295.8°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#663FAC
RGB	rgb(102, 63, 172)
HSL	hsl(261, 46%, 46%)
HSV	hsv(261, 63%, 67%)
CMYK	cmyk(40.7%, 63.4%, 0%, 32.5%)
CIE-LAB	lab(36.66, 41.39, -52.50)
CIE-LCH	lch(36.66, 66.86, 308.25°)
OKLab	oklab(47.18% 0.0725 -0.1496)
OKLCH	oklch(47.18% 0.166 295.8)
XYZ	xyz(14.7014, 9.3581, 40.0534)
Luminance	0.0936 (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

#663FAC #85AC3F

analogous

#3F4EAC #663FAC #9C3FAC

triadic

#663FAC #AC663F #3FAC66

tetradic

#663FAC #AC3F4E #85AC3F #3FAC9C

square

#663FAC #AC3F4E #85AC3F #3FAC9C

split-complementary

#663FAC #AC9C3F #4EAC3F

monochromatic

#311E52 #4B2F7F #663FAC #8663C6 #A98FD6

Accessibility & contrast

On white

7.31

#663FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#663FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FAC

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FAC	#FFFFFF	#000000	##FFFFFF
##663FAC	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#54586F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #663fac;
/* rgb */ color: rgb(102, 63, 172);
/* oklch */ color: oklch(47.2% 0.166 295.8);

Tailwind

colors: {
  custom: {
    50: '#9776c5',
    500: '#663fac',
    950: '#000000',
  },
}

SCSS

$custom: #663fac;
$custom-light: #9776c5;
$custom-dark: #000000;

JSON

{
  "hex": "#663fac",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 172
  },
  "hsl": {
    "h": 261.468,
    "s": 46.383,
    "l": 46.078
  },
  "oklch": {
    "l": 0.4718,
    "c": 0.16626,
    "h": 295.8
  },
  "luminance": 0.09358
}

Semantic roles & 50–950 ramp

primary

#663FAC

secondary

#ACC186

accent

#D652A7

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #663FAC

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

Preview Lab → · Contrast checker → · Palette generator →