#663D72#663D72

#663D72 is a dark, moderate purple. Relative luminance 0.074; OKLCH L 43.1% C 0.097 H 318.3°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#663D72
RGB	rgb(102, 61, 114)
HSL	hsl(286, 30%, 34%)
HSV	hsv(286, 46%, 45%)
CMYK	cmyk(10.5%, 46.5%, 0%, 55.3%)
CIE-LAB	lab(32.65, 27.79, -23.40)
CIE-LCH	lch(32.65, 36.32, 319.90°)
OKLab	oklab(43.08% 0.0725 -0.0646)
OKLCH	oklch(43.08% 0.097 318.3)
XYZ	xyz(10.1851, 7.3775, 16.8038)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D72 #49723D

analogous

#4C3D72 #663D72 #723D64

triadic

#663D72 #72663D #3D7266

tetradic

#663D72 #724C3D #49723D #3D6472

square

#663D72 #724C3D #49723D #3D6472

split-complementary

#663D72 #64723D #3D724C

monochromatic

#1F1222 #42284A #663D72 #8A529A #A675B5

Accessibility & contrast

On white

8.48

#663D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#663D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D72

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D72	#FFFFFF	#000000	##FFFFFF
##663D72	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344A74

Deuteranopia (green-blind)

#404E70

Tritanopia (blue-blind)

#664452

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #663d72;
/* rgb */ color: rgb(102, 61, 114);
/* oklch */ color: oklch(43.1% 0.097 318.3);

Tailwind

colors: {
  custom: {
    50: '#93749b',
    500: '#663d72',
    950: '#000000',
  },
}

SCSS

$custom: #663d72;
$custom-light: #93749b;
$custom-dark: #000000;

JSON

{
  "hex": "#663d72",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 114
  },
  "hsl": {
    "h": 286.415,
    "s": 30.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.43078,
    "c": 0.09709,
    "h": 318.3
  },
  "luminance": 0.07377
}

Semantic roles & 50–950 ramp

primary

#663D72

secondary

#779F6C

accent

#C76178

background

#F9F7F9

surface

#F1EDF2

border

#CBC8CC

text

#0D080E

muted

#7E7B7E

Preview Lab

Preview with #663D72

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

Preview Lab → · Contrast checker → · Palette generator →