#661C87#661C87

#661C87 is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.0% C 0.170 H 312.7°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#661C87
RGB	rgb(102, 28, 135)
HSL	hsl(281, 66%, 32%)
HSV	hsv(281, 79%, 53%)
CMYK	cmyk(24.4%, 79.3%, 0%, 47.1%)
CIE-LAB	lab(27.86, 49.08, -44.21)
CIE-LCH	lch(27.86, 66.06, 317.99°)
OKLab	oklab(40.01% 0.1153 -0.1251)
OKLCH	oklch(40.01% 0.17 312.7)
XYZ	xyz(10.2671, 5.4049, 23.4194)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C87 #3D871C

analogous

#301C87 #661C87 #871C73

triadic

#661C87 #87661C #1C8766

tetradic

#661C87 #87301C #3D871C #1C7387

square

#661C87 #87301C #3D871C #1C7387

split-complementary

#661C87 #73871C #1C8730

monochromatic

#190722 #401154 #661C87 #8C27BA #AB45D8

Accessibility & contrast

On white

10.09

#661C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#661C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C87

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C87	#FFFFFF	#000000	##FFFFFF
##661C87	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8A

Deuteranopia (green-blind)

#0C4385

Tritanopia (blue-blind)

#623551

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #661c87;
/* rgb */ color: rgb(102, 28, 135);
/* oklch */ color: oklch(40.0% 0.170 312.7);

Tailwind

colors: {
  custom: {
    50: '#9661ab',
    500: '#661c87',
    950: '#000000',
  },
}

SCSS

$custom: #661c87;
$custom-light: #9661ab;
$custom-dark: #000000;

JSON

{
  "hex": "#661c87",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 135
  },
  "hsl": {
    "h": 281.495,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.40014,
    "c": 0.1701,
    "h": 312.7
  },
  "luminance": 0.05405
}

Semantic roles & 50–950 ramp

primary

#661C87

secondary

#69BA45

accent

#E93F73

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #661C87

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

Preview Lab → · Contrast checker → · Palette generator →