#661C90#661C90

#661C90 is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.7% C 0.179 H 309.3°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#661C90
RGB	rgb(102, 28, 144)
HSL	hsl(278, 67%, 34%)
HSV	hsv(278, 81%, 56%)
CMYK	cmyk(29.2%, 80.6%, 0%, 43.5%)
CIE-LAB	lab(28.56, 51.05, -48.66)
CIE-LCH	lch(28.56, 70.53, 316.37°)
OKLab	oklab(40.73% 0.1133 -0.1382)
OKLCH	oklch(40.73% 0.179 309.3)
XYZ	xyz(10.9278, 5.6691, 26.8987)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C90 #46901C

analogous

#2C1C90 #661C90 #901C80

triadic

#661C90 #90661C #1C9066

tetradic

#661C90 #902C1C #46901C #1C8090

square

#661C90 #902C1C #46901C #1C8090

split-complementary

#661C90 #80901C #1C902C

monochromatic

#1D082A #42125D #661C90 #8A26C3 #A74ADC

Accessibility & contrast

On white

9.84

#661C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#661C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C90

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C90	#FFFFFF	#000000	##FFFFFF
##661C90	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004093

Deuteranopia (green-blind)

#00448E

Tritanopia (blue-blind)

#603956

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661c90;
/* rgb */ color: rgb(102, 28, 144);
/* oklch */ color: oklch(40.7% 0.179 309.3);

Tailwind

colors: {
  custom: {
    50: '#9662b1',
    500: '#661c90',
    950: '#000000',
  },
}

SCSS

$custom: #661c90;
$custom-light: #9662b1;
$custom-dark: #000000;

JSON

{
  "hex": "#661c90",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 144
  },
  "hsl": {
    "h": 278.276,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40728,
    "c": 0.17868,
    "h": 309.3
  },
  "luminance": 0.05669
}

Semantic roles & 50–950 ramp

primary

#661C90

secondary

#74BE4A

accent

#EA3D7C

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #661C90

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

Preview Lab → · Contrast checker → · Palette generator →