#661B9E#661B9E

#661B9E is a dark, vivid violet. Relative luminance 0.061; OKLCH L 41.8% C 0.193 H 304.8°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#661B9E
RGB	rgb(102, 27, 158)
HSL	hsl(274, 71%, 36%)
HSV	hsv(274, 83%, 62%)
CMYK	cmyk(35.4%, 82.9%, 0%, 38%)
CIE-LAB	lab(29.61, 54.54, -55.55)
CIE-LCH	lch(29.61, 77.85, 314.48°)
OKLab	oklab(41.82% 0.1103 -0.1584)
OKLCH	oklch(41.82% 0.193 304.8)
XYZ	xyz(12.0416, 6.0773, 32.8798)
Luminance	0.0608 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B9E #539E1B

analogous

#251B9E #661B9E #9E1B95

triadic

#661B9E #9E661B #1B9E66

tetradic

#661B9E #9E251B #539E1B #1B959E

square

#661B9E #9E251B #539E1B #1B959E

split-complementary

#661B9E #959E1B #1B9E25

monochromatic

#230935 #44126A #661B9E #8824D2 #A452E1

Accessibility & contrast

On white

9.48

#661B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#661B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B9E

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B9E	#FFFFFF	#000000	##FFFFFF
##661B9E	1.00	9.48	2.22	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A1

Deuteranopia (green-blind)

#00469C

Tritanopia (blue-blind)

#5B3F5E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #661b9e;
/* rgb */ color: rgb(102, 27, 158);
/* oklch */ color: oklch(41.8% 0.193 304.8);

Tailwind

colors: {
  custom: {
    50: '#9862bc',
    500: '#661b9e',
    950: '#000000',
  },
}

SCSS

$custom: #661b9e;
$custom-light: #9862bc;
$custom-dark: #000000;

JSON

{
  "hex": "#661b9e",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 158
  },
  "hsl": {
    "h": 274.351,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41819,
    "c": 0.19299,
    "h": 304.8
  },
  "luminance": 0.06077
}

Semantic roles & 50–950 ramp

primary

#661B9E

secondary

#82C451

accent

#EE3A87

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #661B9E

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

Preview Lab → · Contrast checker → · Palette generator →