#663A72#663A72

#663A72 is a dark, moderate purple. Relative luminance 0.071; OKLCH L 42.6% C 0.103 H 318.8°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#663A72
RGB	rgb(102, 58, 114)
HSL	hsl(287, 33%, 34%)
HSV	hsv(287, 49%, 45%)
CMYK	cmyk(10.5%, 49.1%, 0%, 55.3%)
CIE-LAB	lab(31.96, 29.56, -24.48)
CIE-LCH	lch(31.96, 38.38, 320.37°)
OKLab	oklab(42.56% 0.0773 -0.0677)
OKLCH	oklch(42.56% 0.103 318.8)
XYZ	xyz(10.0294, 7.0661, 16.7519)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A72 #46723A

analogous

#4A3A72 #663A72 #723A62

triadic

#663A72 #72663A #3A7266

tetradic

#663A72 #724A3A #46723A #3A6272

square

#663A72 #724A3A #46723A #3A6272

split-complementary

#663A72 #62723A #3A724A

monochromatic

#1D1121 #422549 #663A72 #8A4F9B #A770B6

Accessibility & contrast

On white

8.70

#663A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#663A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A72

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A72	#FFFFFF	#000000	##FFFFFF
##663A72	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314874

Deuteranopia (green-blind)

#3D4D70

Tritanopia (blue-blind)

#664250

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #663a72;
/* rgb */ color: rgb(102, 58, 114);
/* oklch */ color: oklch(42.6% 0.103 318.8);

Tailwind

colors: {
  custom: {
    50: '#93729b',
    500: '#663a72',
    950: '#000000',
  },
}

SCSS

$custom: #663a72;
$custom-light: #93729b;
$custom-dark: #000000;

JSON

{
  "hex": "#663a72",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 114
  },
  "hsl": {
    "h": 287.143,
    "s": 32.558,
    "l": 33.725
  },
  "oklch": {
    "l": 0.4256,
    "c": 0.10272,
    "h": 318.8
  },
  "luminance": 0.07066
}

Semantic roles & 50–950 ramp

primary

#663A72

secondary

#74A068

accent

#C95F76

background

#F9F6F9

surface

#F1ECF2

border

#CBC7CC

text

#0D080E

muted

#7E7B7E

Preview Lab

Preview with #663A72

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

Preview Lab → · Contrast checker → · Palette generator →