#661B9D#661B9D

#661B9D is a dark, vivid violet. Relative luminance 0.060; OKLCH L 41.7% C 0.192 H 305.1°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX#661B9D
RGBrgb(102, 27, 157)
HSLhsl(275, 71%, 36%)
HSVhsv(275, 83%, 62%)
CMYKcmyk(35%, 82.8%, 0%, 38.4%)
CIE-LABlab(29.52, 54.31, -55.08)
CIE-LCHlch(29.52, 77.35, 314.60°)
OKLaboklab(41.73% 0.1106 -0.157)
OKLCHoklch(41.73% 0.192 305.1)
XYZxyz(11.9558, 6.0430, 32.4283)
Luminance0.0604 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#661B9D #529D1B
analogous
#251B9D #661B9D #9D1B93
triadic
#661B9D #9D661B #1B9D66
tetradic
#661B9D #9D251B #529D1B #1B939D
square
#661B9D #9D251B #529D1B #1B939D
split-complementary
#661B9D #939D1B #1B9D25
monochromatic
#220935 #441269 #661B9D #8824D1 #A451E1

Accessibility & contrast

On white

9.51
#661B9D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.21
#661B9D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B9D
9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##661B9D#FFFFFF#000000##FFFFFF
##661B9D1.009.512.219.51
#FFFFFF9.511.0021.001.00
#0000002.2121.001.0021.00
##FFFFFF9.511.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0044A0
Deuteranopia (green-blind)
#00469B
Tritanopia (blue-blind)
#5B3F5D
Achromatopsia (no color)
#464646

Design tokens & code

CSS
--color: #661b9d;
/* rgb */ color: rgb(102, 27, 157);
/* oklch */ color: oklch(41.7% 0.192 305.1);
Tailwind
colors: {
  custom: {
    50: '#9762bb',
    500: '#661b9d',
    950: '#000000',
  },
}
SCSS
$custom: #661b9d;
$custom-light: #9762bb;
$custom-dark: #000000;
JSON
{
  "hex": "#661b9d",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 157
  },
  "hsl": {
    "h": 274.615,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.41733,
    "c": 0.19203,
    "h": 305.1
  },
  "luminance": 0.06043
}

Semantic roles & 50–950 ramp

primary
#661B9D
secondary
#81C450
accent
#ED3A86
background
#F9F6FB
surface
#F2EBF6
border
#CCC6D0
text
#0E0612
muted
#7E7A81

Preview Lab

Preview with #661B9D

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

Preview Lab → · Contrast checker → · Palette generator →

#661B9D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva