#661F9B#661F9B

#661F9B is a dark, vivid violet. Relative luminance 0.062; OKLCH L 41.9% C 0.186 H 305.4°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#661F9B
RGB	rgb(102, 31, 155)
HSL	hsl(274, 67%, 36%)
HSV	hsv(274, 80%, 61%)
CMYK	cmyk(34.2%, 80%, 0%, 39.2%)
CIE-LAB	lab(29.84, 52.44, -53.34)
CIE-LCH	lch(29.84, 74.79, 314.51°)
OKLab	oklab(41.9% 0.108 -0.1519)
OKLCH	oklch(41.9% 0.186 305.4)
XYZ	xyz(11.8845, 6.1714, 31.5691)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661F9B #549B1F

analogous

#281F9B #661F9B #9B1F92

triadic

#661F9B #9B661F #1F9B66

tetradic

#661F9B #9B281F #549B1F #1F929B

square

#661F9B #9B281F #549B1F #1F929B

split-complementary

#661F9B #929B1F #1F9B28

monochromatic

#230B35 #441568 #661F9B #8829CE #A457DD

Accessibility & contrast

On white

9.40

#661F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#661F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661F9B

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661F9B	#FFFFFF	#000000	##FFFFFF
##661F9B	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#004699

Tritanopia (blue-blind)

#5C405D

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #661f9b;
/* rgb */ color: rgb(102, 31, 155);
/* oklch */ color: oklch(41.9% 0.186 305.4);

Tailwind

colors: {
  custom: {
    50: '#9764b9',
    500: '#661f9b',
    950: '#000000',
  },
}

SCSS

$custom: #661f9b;
$custom-light: #9764b9;
$custom-dark: #000000;

JSON

{
  "hex": "#661f9b",
  "rgb": {
    "r": 102,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 274.355,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.41903,
    "c": 0.18641,
    "h": 305.4
  },
  "luminance": 0.06171
}

Semantic roles & 50–950 ramp

primary

#661F9B

secondary

#83C155

accent

#EA3E87

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #661F9B

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

Preview Lab → · Contrast checker → · Palette generator →