#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
RGBrgb(102, 58, 115)
HSLhsl(286, 33%, 34%)
HSVhsv(286, 50%, 45%)
CMYKcmyk(11.3%, 49.6%, 0%, 54.9%)
CIE-LABlab(32.01, 29.79, -25.03)
CIE-LCHlch(32.01, 38.91, 319.96°)
OKLaboklab(42.61% 0.0774 -0.0693)
OKLCHoklch(42.61% 0.104 318.2)
XYZxyz(10.0866, 7.0890, 17.0533)
Luminance0.0709 (WCAG relative)
Temperaturecool
Familypurple

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
##663A731.008.692.428.69
#FFFFFF8.691.0021.001.00
#0000002.4221.001.0021.00
##FFFFFF8.691.0021.001.00

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 →

#663A73 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva