#663FA7#663FA7

#663FA7 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 46.8% C 0.160 H 297.1°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#663FA7
RGB	rgb(102, 63, 167)
HSL	hsl(263, 45%, 45%)
HSV	hsv(263, 62%, 65%)
CMYK	cmyk(38.9%, 62.3%, 0%, 34.5%)
CIE-LAB	lab(36.31, 40.03, -50.09)
CIE-LCH	lch(36.31, 64.12, 308.63°)
OKLab	oklab(46.81% 0.0728 -0.1425)
OKLCH	oklch(46.81% 0.16 297.1)
XYZ	xyz(14.2303, 9.1696, 37.5719)
Luminance	0.0917 (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

#663FA7 #80A73F

analogous

#3F4CA7 #663FA7 #9A3FA7

triadic

#663FA7 #A7663F #3FA766

tetradic

#663FA7 #A73F4C #80A73F #3FA79A

square

#663FA7 #A73F4C #80A73F #3FA79A

split-complementary

#663FA7 #A79A3F #4CA73F

monochromatic

#301D4E #4B2E7B #663FA7 #8560C3 #A78DD4

Accessibility & contrast

On white

7.41

#663FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#663FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FA7

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FA7	#FFFFFF	#000000	##FFFFFF
##663FA7	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AA

Deuteranopia (green-blind)

#0B54A5

Tritanopia (blue-blind)

#56566D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663fa7;
/* rgb */ color: rgb(102, 63, 167);
/* oklch */ color: oklch(46.8% 0.160 297.1);

Tailwind

colors: {
  custom: {
    50: '#9676c2',
    500: '#663fa7',
    950: '#000000',
  },
}

SCSS

$custom: #663fa7;
$custom-light: #9676c2;
$custom-dark: #000000;

JSON

{
  "hex": "#663fa7",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 167
  },
  "hsl": {
    "h": 262.5,
    "s": 45.217,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46808,
    "c": 0.16007,
    "h": 297.1
  },
  "luminance": 0.0917
}

Semantic roles & 50–950 ramp

primary

#663FA7

secondary

#A8BF83

accent

#D553A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663FA7

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

Preview Lab → · Contrast checker → · Palette generator →