#661BB4#661BB4

#661BB4 is a dark, highly saturated violet. Relative luminance 0.069; OKLCH L 43.8% C 0.214 H 298.7°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#661BB4
RGB	rgb(102, 27, 180)
HSL	hsl(269, 74%, 41%)
HSV	hsv(269, 85%, 71%)
CMYK	cmyk(43.3%, 85%, 0%, 29.4%)
CIE-LAB	lab(31.59, 59.62, -65.55)
CIE-LCH	lch(31.59, 88.61, 312.29°)
OKLab	oklab(43.79% 0.1029 -0.1877)
OKLCH	oklch(43.79% 0.214 298.7)
XYZ	xyz(14.1075, 6.9037, 43.7604)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661BB4 #69B41B

analogous

#1B1CB4 #661BB4 #B21BB4

triadic

#661BB4 #B4661B #1BB466

tetradic

#661BB4 #B41B1C #69B41B #1BB4B2

square

#661BB4 #B41B1C #69B41B #1BB4B2

split-complementary

#661BB4 #B4B21B #1CB41B

monochromatic

#2A0B4A #48137F #661BB4 #842DDF #A362E7

Accessibility & contrast

On white

8.82

#661BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#661BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661BB4

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661BB4	#FFFFFF	#000000	##FFFFFF
##661BB4	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB8

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#52496B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #661bb4;
/* rgb */ color: rgb(102, 27, 180);
/* oklch */ color: oklch(43.8% 0.214 298.7);

Tailwind

colors: {
  custom: {
    50: '#9a64cc',
    500: '#661bb4',
    950: '#000000',
  },
}

SCSS

$custom: #661bb4;
$custom-light: #9a64cc;
$custom-dark: #000000;

JSON

{
  "hex": "#661bb4",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 180
  },
  "hsl": {
    "h": 269.412,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43792,
    "c": 0.21408,
    "h": 298.7
  },
  "luminance": 0.06904
}

Semantic roles & 50–950 ramp

primary

#661BB4

secondary

#96CC5F

accent

#F13796

background

#FAF6FC

surface

#F3EBF9

border

#CDC6D2

text

#0F0613

muted

#7F7A82

Preview Lab

Preview with #661BB4

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

Preview Lab → · Contrast checker → · Palette generator →