#663FA0#663FA0

#663FA0 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.3% C 0.151 H 298.9°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#663FA0
RGB	rgb(102, 63, 160)
HSL	hsl(264, 43%, 44%)
HSV	hsv(264, 61%, 63%)
CMYK	cmyk(36.2%, 60.6%, 0%, 37.3%)
CIE-LAB	lab(35.83, 38.14, -46.67)
CIE-LCH	lch(35.83, 60.27, 309.25°)
OKLab	oklab(46.3% 0.0731 -0.1325)
OKLCH	oklch(46.3% 0.151 298.9)
XYZ	xyz(13.6006, 8.9177, 34.2556)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FA0 #79A03F

analogous

#3F48A0 #663FA0 #963FA0

triadic

#663FA0 #A0663F #3FA066

tetradic

#663FA0 #A03F48 #79A03F #3FA096

square

#663FA0 #A03F48 #79A03F #3FA096

split-complementary

#663FA0 #A0963F #48A03F

monochromatic

#2E1C48 #4A2E74 #663FA0 #845DBF #A689D0

Accessibility & contrast

On white

7.54

#663FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#663FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FA0

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FA0	#FFFFFF	#000000	##FFFFFF
##663FA0	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)

#0254A3

Deuteranopia (green-blind)

#1C539E

Tritanopia (blue-blind)

#595469

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663fa0;
/* rgb */ color: rgb(102, 63, 160);
/* oklch */ color: oklch(46.3% 0.151 298.9);

Tailwind

colors: {
  custom: {
    50: '#9676bd',
    500: '#663fa0',
    950: '#000000',
  },
}

SCSS

$custom: #663fa0;
$custom-light: #9676bd;
$custom-dark: #000000;

JSON

{
  "hex": "#663fa0",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 160
  },
  "hsl": {
    "h": 264.124,
    "s": 43.498,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46302,
    "c": 0.15134,
    "h": 298.9
  },
  "luminance": 0.08918
}

Semantic roles & 50–950 ramp

primary

#663FA0

secondary

#A3BB80

accent

#D355A0

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663FA0

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

Preview Lab → · Contrast checker → · Palette generator →