#661C9B#661C9B

#661C9B is a dark, vivid violet. Relative luminance 0.060; OKLCH L 41.6% C 0.189 H 305.7°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#661C9B
RGB	rgb(102, 28, 155)
HSL	hsl(275, 69%, 36%)
HSV	hsv(275, 82%, 61%)
CMYK	cmyk(34.2%, 81.9%, 0%, 39.2%)
CIE-LAB	lab(29.47, 53.52, -53.95)
CIE-LCH	lch(29.47, 75.99, 314.77°)
OKLab	oklab(41.64% 0.1104 -0.1537)
OKLCH	oklch(41.64% 0.189 305.7)
XYZ	xyz(11.8098, 6.0219, 31.5442)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C9B #519B1C

analogous

#271C9B #661C9B #9B1C90

triadic

#661C9B #9B661C #1C9B66

tetradic

#661C9B #9B271C #519B1C #1C909B

square

#661C9B #9B271C #519B1C #1C909B

split-complementary

#661C9B #909B1C #1C9B27

monochromatic

#220933 #441367 #661C9B #8825CF #A452E0

Accessibility & contrast

On white

9.53

#661C9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#661C9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C9B

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C9B	#FFFFFF	#000000	##FFFFFF
##661C9B	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439E

Deuteranopia (green-blind)

#004699

Tritanopia (blue-blind)

#5C3E5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #661c9b;
/* rgb */ color: rgb(102, 28, 155);
/* oklch */ color: oklch(41.6% 0.189 305.7);

Tailwind

colors: {
  custom: {
    50: '#9762b9',
    500: '#661c9b',
    950: '#000000',
  },
}

SCSS

$custom: #661c9b;
$custom-light: #9762b9;
$custom-dark: #000000;

JSON

{
  "hex": "#661c9b",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 155
  },
  "hsl": {
    "h": 274.961,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41643,
    "c": 0.18923,
    "h": 305.7
  },
  "luminance": 0.06022
}

Semantic roles & 50–950 ramp

primary

#661C9B

secondary

#80C350

accent

#EC3C85

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #661C9B

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

Preview Lab → · Contrast checker → · Palette generator →