#661C99#661C99

#661C99 is a dark, vivid violet. Relative luminance 0.060; OKLCH L 41.5% C 0.187 H 306.3°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#661C99
RGB	rgb(102, 28, 153)
HSL	hsl(276, 69%, 35%)
HSV	hsv(276, 82%, 60%)
CMYK	cmyk(33.3%, 81.7%, 0%, 40%)
CIE-LAB	lab(29.30, 53.07, -53.00)
CIE-LCH	lch(29.30, 75.00, 315.04°)
OKLab	oklab(41.47% 0.111 -0.1509)
OKLCH	oklch(41.47% 0.187 306.3)
XYZ	xyz(11.6432, 5.9553, 30.6669)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C99 #4F991C

analogous

#271C99 #661C99 #991C8D

triadic

#661C99 #99661C #1C9966

tetradic

#661C99 #99271C #4F991C #1C8D99

square

#661C99 #99271C #4F991C #1C8D99

split-complementary

#661C99 #8D991C #1C9927

monochromatic

#210932 #441365 #661C99 #8825CD #A550DF

Accessibility & contrast

On white

9.58

#661C99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#661C99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C99

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C99	#FFFFFF	#000000	##FFFFFF
##661C99	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439C

Deuteranopia (green-blind)

#004597

Tritanopia (blue-blind)

#5D3D5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #661c99;
/* rgb */ color: rgb(102, 28, 153);
/* oklch */ color: oklch(41.5% 0.187 306.3);

Tailwind

colors: {
  custom: {
    50: '#9762b8',
    500: '#661c99',
    950: '#000000',
  },
}

SCSS

$custom: #661c99;
$custom-light: #9762b8;
$custom-dark: #000000;

JSON

{
  "hex": "#661c99",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 153
  },
  "hsl": {
    "h": 275.52,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.41474,
    "c": 0.18731,
    "h": 306.3
  },
  "luminance": 0.05955
}

Semantic roles & 50–950 ramp

primary

#661C99

secondary

#7EC24F

accent

#EC3C84

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #661C99

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

Preview Lab → · Contrast checker → · Palette generator →