#661C81#661C81

#661C81 is a dark, vivid purple. Relative luminance 0.052; OKLCH L 39.6% C 0.164 H 315.0°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#661C81
RGB	rgb(102, 28, 129)
HSL	hsl(284, 64%, 31%)
HSV	hsv(284, 78%, 51%)
CMYK	cmyk(20.9%, 78.3%, 0%, 49.4%)
CIE-LAB	lab(27.41, 47.80, -41.18)
CIE-LCH	lch(27.41, 63.09, 319.25°)
OKLab	oklab(39.56% 0.1163 -0.1162)
OKLCH	oklch(39.56% 0.164 315)
XYZ	xyz(9.8565, 5.2406, 21.2570)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C81 #37811C

analogous

#331C81 #661C81 #811C69

triadic

#661C81 #81661C #1C8166

tetradic

#661C81 #81331C #37811C #1C6981

square

#661C81 #81331C #37811C #1C6981

split-complementary

#661C81 #69811C #1C8133

monochromatic

#16061C #3E114F #661C81 #8E27B3 #AE42D6

Accessibility & contrast

On white

10.25

#661C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#661C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C81

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C81	#FFFFFF	#000000	##FFFFFF
##661C81	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D84

Deuteranopia (green-blind)

#17437F

Tritanopia (blue-blind)

#64334E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #661c81;
/* rgb */ color: rgb(102, 28, 129);
/* oklch */ color: oklch(39.6% 0.164 315.0);

Tailwind

colors: {
  custom: {
    50: '#9561a6',
    500: '#661c81',
    950: '#000000',
  },
}

SCSS

$custom: #661c81;
$custom-light: #9561a6;
$custom-dark: #000000;

JSON

{
  "hex": "#661c81",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 129
  },
  "hsl": {
    "h": 283.96,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.39555,
    "c": 0.16441,
    "h": 315
  },
  "luminance": 0.0524
}

Semantic roles & 50–950 ramp

primary

#661C81

secondary

#62B444

accent

#E7406D

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E050F

muted

#7E7A7F

Preview Lab

Preview with #661C81

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

Preview Lab → · Contrast checker → · Palette generator →