#663EA8#663EA8

#663EA8 is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.163 H 297.0°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#663EA8
RGB	rgb(102, 62, 168)
HSL	hsl(263, 46%, 45%)
HSV	hsv(263, 63%, 66%)
CMYK	cmyk(39.3%, 63.1%, 0%, 34.1%)
CIE-LAB	lab(36.17, 40.86, -50.91)
CIE-LCH	lch(36.17, 65.28, 308.75°)
OKLab	oklab(46.73% 0.0739 -0.145)
OKLCH	oklch(46.73% 0.163 297)
XYZ	xyz(14.2682, 9.0969, 38.0423)
Luminance	0.0910 (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

#663EA8 #80A83E

analogous

#3E4BA8 #663EA8 #9B3EA8

triadic

#663EA8 #A8663E #3EA866

tetradic

#663EA8 #A83E4B #80A83E #3EA89B

square

#663EA8 #A83E4B #80A83E #3EA89B

split-complementary

#663EA8 #A89B3E #4BA83E

monochromatic

#301D4F #4B2E7B #663EA8 #855FC4 #A78CD5

Accessibility & contrast

On white

7.45

#663EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#663EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EA8

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EA8	#FFFFFF	#000000	##FFFFFF
##663EA8	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0354A6

Tritanopia (blue-blind)

#56566D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663ea8;
/* rgb */ color: rgb(102, 62, 168);
/* oklch */ color: oklch(46.7% 0.163 297.0);

Tailwind

colors: {
  custom: {
    50: '#9675c3',
    500: '#663ea8',
    950: '#000000',
  },
}

SCSS

$custom: #663ea8;
$custom-light: #9675c3;
$custom-dark: #000000;

JSON

{
  "hex": "#663ea8",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 168
  },
  "hsl": {
    "h": 262.642,
    "s": 46.087,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4673,
    "c": 0.16273,
    "h": 297
  },
  "luminance": 0.09097
}

Semantic roles & 50–950 ramp

primary

#663EA8

secondary

#A8BF83

accent

#D652A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663EA8

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

Preview Lab → · Contrast checker → · Palette generator →