#663D97#663D97

#663D97 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.4% C 0.143 H 302.0°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#663D97
RGB	rgb(102, 61, 151)
HSL	hsl(267, 42%, 42%)
HSV	hsv(267, 60%, 59%)
CMYK	cmyk(32.5%, 59.6%, 0%, 40.8%)
CIE-LAB	lab(34.80, 36.89, -42.88)
CIE-LCH	lch(34.80, 56.57, 310.70°)
OKLab	oklab(45.36% 0.0758 -0.1214)
OKLCH	oklch(45.36% 0.143 302)
XYZ	xyz(12.7329, 8.3966, 30.2221)
Luminance	0.0840 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D97 #6E973D

analogous

#3D4197 #663D97 #933D97

triadic

#663D97 #97663D #3D9766

tetradic

#663D97 #973D41 #6E973D #3D9793

square

#663D97 #973D41 #6E973D #3D9793

split-complementary

#663D97 #97933D #41973D

monochromatic

#2B1A40 #492B6B #663D97 #8456BB #A482CC

Accessibility & contrast

On white

7.84

#663D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#663D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D97

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D97	#FFFFFF	#000000	##FFFFFF
##663D97	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12519A

Deuteranopia (green-blind)

#255195

Tritanopia (blue-blind)

#5C4F64

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663d97;
/* rgb */ color: rgb(102, 61, 151);
/* oklch */ color: oklch(45.4% 0.143 302.0);

Tailwind

colors: {
  custom: {
    50: '#9574b6',
    500: '#663d97',
    950: '#000000',
  },
}

SCSS

$custom: #663d97;
$custom-light: #9574b6;
$custom-dark: #000000;

JSON

{
  "hex": "#663d97",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 151
  },
  "hsl": {
    "h": 267.333,
    "s": 42.453,
    "l": 41.569
  },
  "oklch": {
    "l": 0.45357,
    "c": 0.14312,
    "h": 302
  },
  "luminance": 0.08397
}

Semantic roles & 50–950 ramp

primary

#663D97

secondary

#9BB779

accent

#D25699

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #663D97

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

Preview Lab → · Contrast checker → · Palette generator →