#663C97#663C97

#663C97 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.2% C 0.145 H 302.2°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#663C97
RGB	rgb(102, 60, 151)
HSL	hsl(268, 43%, 41%)
HSV	hsv(268, 60%, 59%)
CMYK	cmyk(32.5%, 60.3%, 0%, 40.8%)
CIE-LAB	lab(34.58, 37.46, -43.23)
CIE-LCH	lch(34.58, 57.20, 310.91°)
OKLab	oklab(45.2% 0.0771 -0.1224)
OKLCH	oklch(45.2% 0.145 302.2)
XYZ	xyz(12.6800, 8.2908, 30.2044)
Luminance	0.0829 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C97 #6D973C

analogous

#3C4097 #663C97 #943C97

triadic

#663C97 #97663C #3C9766

tetradic

#663C97 #973C40 #6D973C #3C9794

square

#663C97 #973C40 #6D973C #3C9794

split-complementary

#663C97 #97943C #40973C

monochromatic

#2B193F #482B6B #663C97 #8455BB #A481CD

Accessibility & contrast

On white

7.90

#663C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#663C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C97

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C97	#FFFFFF	#000000	##FFFFFF
##663C97	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E519A

Deuteranopia (green-blind)

#235195

Tritanopia (blue-blind)

#5C4F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #663c97;
/* rgb */ color: rgb(102, 60, 151);
/* oklch */ color: oklch(45.2% 0.145 302.2);

Tailwind

colors: {
  custom: {
    50: '#9574b6',
    500: '#663c97',
    950: '#000000',
  },
}

SCSS

$custom: #663c97;
$custom-light: #9574b6;
$custom-dark: #000000;

JSON

{
  "hex": "#663c97",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 151
  },
  "hsl": {
    "h": 267.692,
    "s": 43.128,
    "l": 41.373
  },
  "oklch": {
    "l": 0.45201,
    "c": 0.14465,
    "h": 302.2
  },
  "luminance": 0.08291
}

Semantic roles & 50–950 ramp

primary

#663C97

secondary

#9AB778

accent

#D35599

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #663C97

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

Preview Lab → · Contrast checker → · Palette generator →