#661C88#661C88

#661C88 is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.1% C 0.171 H 312.3°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#661C88
RGB	rgb(102, 28, 136)
HSL	hsl(281, 66%, 32%)
HSV	hsv(281, 79%, 53%)
CMYK	cmyk(25%, 79.4%, 0%, 46.7%)
CIE-LAB	lab(27.93, 49.30, -44.71)
CIE-LCH	lch(27.93, 66.55, 317.79°)
OKLab	oklab(40.09% 0.1151 -0.1266)
OKLCH	oklch(40.09% 0.171 312.3)
XYZ	xyz(10.3379, 5.4332, 23.7919)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.81

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C88 #3E881C

analogous

#301C88 #661C88 #881C74

triadic

#661C88 #88661C #1C8866

tetradic

#661C88 #88301C #3E881C #1C7488

square

#661C88 #88301C #3E881C #1C7488

split-complementary

#661C88 #74881C #1C8830

monochromatic

#1A0722 #401255 #661C88 #8C26BB #AA46D9

Accessibility & contrast

On white

10.06

#661C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#661C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C88

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C88	#FFFFFF	#000000	##FFFFFF
##661C88	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8B

Deuteranopia (green-blind)

#094386

Tritanopia (blue-blind)

#623652

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #661c88;
/* rgb */ color: rgb(102, 28, 136);
/* oklch */ color: oklch(40.1% 0.171 312.3);

Tailwind

colors: {
  custom: {
    50: '#9661ab',
    500: '#661c88',
    950: '#000000',
  },
}

SCSS

$custom: #661c88;
$custom-light: #9661ab;
$custom-dark: #000000;

JSON

{
  "hex": "#661c88",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 136
  },
  "hsl": {
    "h": 281.111,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.40092,
    "c": 0.17105,
    "h": 312.3
  },
  "luminance": 0.05433
}

Semantic roles & 50–950 ramp

primary

#661C88

secondary

#6ABA45

accent

#E93F74

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #661C88

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

Preview Lab → · Contrast checker → · Palette generator →