#663A73#663A73

#663A73 is a dark, moderate purple. Relative luminance 0.071; OKLCH L 42.6% C 0.104 H 318.2°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#663A73
RGB	rgb(102, 58, 115)
HSL	hsl(286, 33%, 34%)
HSV	hsv(286, 50%, 45%)
CMYK	cmyk(11.3%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(32.01, 29.79, -25.03)
CIE-LCH	lch(32.01, 38.91, 319.96°)
OKLab	oklab(42.61% 0.0774 -0.0693)
OKLCH	oklch(42.61% 0.104 318.2)
XYZ	xyz(10.0866, 7.0890, 17.0533)
Luminance	0.0709 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A73 #47733A

analogous

#4A3A73 #663A73 #733A64

triadic

#663A73 #73663A #3A7366

tetradic

#663A73 #734A3A #47733A #3A6473

square

#663A73 #734A3A #47733A #3A6473

split-complementary

#663A73 #64733A #3A734A

monochromatic

#1E1122 #42254A #663A73 #8A4F9C #A770B7

Accessibility & contrast

On white

8.69

#663A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#663A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A73

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A73	#FFFFFF	#000000	##FFFFFF
##663A73	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304875

Deuteranopia (green-blind)

#3D4D71

Tritanopia (blue-blind)

#664251

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #663a73;
/* rgb */ color: rgb(102, 58, 115);
/* oklch */ color: oklch(42.6% 0.104 318.2);

Tailwind

colors: {
  custom: {
    50: '#93729b',
    500: '#663a73',
    950: '#000000',
  },
}

SCSS

$custom: #663a73;
$custom-light: #93729b;
$custom-dark: #000000;

JSON

{
  "hex": "#663a73",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 286.316,
    "s": 32.948,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42615,
    "c": 0.10391,
    "h": 318.2
  },
  "luminance": 0.07089
}

Semantic roles & 50–950 ramp

primary

#663A73

secondary

#75A168

accent

#C95F77

background

#F9F6F9

surface

#F1ECF2

border

#CBC7CC

text

#0D080E

muted

#7E7B7E

Preview Lab

Preview with #663A73

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

Preview Lab → · Contrast checker → · Palette generator →