#661C8C#661C8C

#661C8C is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.4% C 0.175 H 310.8°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#661C8C
RGB	rgb(102, 28, 140)
HSL	hsl(280, 67%, 33%)
HSV	hsv(280, 80%, 55%)
CMYK	cmyk(27.1%, 80%, 0%, 45.1%)
CIE-LAB	lab(28.24, 50.17, -46.70)
CIE-LCH	lch(28.24, 68.54, 317.05°)
OKLab	oklab(40.41% 0.1142 -0.1324)
OKLCH	oklch(40.41% 0.175 310.8)
XYZ	xyz(10.6275, 5.5490, 25.3171)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.09

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C8C #428C1C

analogous

#2E1C8C #661C8C #8C1C7A

triadic

#661C8C #8C661C #1C8C66

tetradic

#661C8C #8C2E1C #428C1C #1C7A8C

square

#661C8C #8C2E1C #428C1C #1C7A8C

split-complementary

#661C8C #7A8C1C #1C8C2E

monochromatic

#1C0826 #411259 #661C8C #8B26BF #A948DA

Accessibility & contrast

On white

9.95

#661C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#661C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C8C

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C8C	#FFFFFF	#000000	##FFFFFF
##661C8C	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8F

Deuteranopia (green-blind)

#00448A

Tritanopia (blue-blind)

#613854

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661c8c;
/* rgb */ color: rgb(102, 28, 140);
/* oklch */ color: oklch(40.4% 0.175 310.8);

Tailwind

colors: {
  custom: {
    50: '#9662ae',
    500: '#661c8c',
    950: '#000000',
  },
}

SCSS

$custom: #661c8c;
$custom-light: #9662ae;
$custom-dark: #000000;

JSON

{
  "hex": "#661c8c",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 140
  },
  "hsl": {
    "h": 279.643,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.40407,
    "c": 0.17485,
    "h": 310.8
  },
  "luminance": 0.05549
}

Semantic roles & 50–950 ramp

primary

#661C8C

secondary

#6FBC48

accent

#EA3E78

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #661C8C

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

Preview Lab → · Contrast checker → · Palette generator →