#661B90#661B90

#661B90 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.6% C 0.180 H 309.4°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#661B90
RGB	rgb(102, 27, 144)
HSL	hsl(278, 68%, 34%)
HSV	hsv(278, 81%, 56%)
CMYK	cmyk(29.2%, 81.3%, 0%, 43.5%)
CIE-LAB	lab(28.44, 51.41, -48.86)
CIE-LCH	lch(28.44, 70.92, 316.45°)
OKLab	oklab(40.64% 0.1141 -0.1388)
OKLCH	oklch(40.64% 0.18 309.4)
XYZ	xyz(10.9044, 5.6225, 26.8910)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B90 #45901B

analogous

#2C1B90 #661B90 #901B7F

triadic

#661B90 #90661B #1B9066

tetradic

#661B90 #902C1B #45901B #1B7F90

square

#661B90 #902C1B #45901B #1B7F90

split-complementary

#661B90 #7F901B #1B902C

monochromatic

#1D0829 #41115C #661B90 #8B25C4 #A849DD

Accessibility & contrast

On white

9.89

#661B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#661B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B90

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B90	#FFFFFF	#000000	##FFFFFF
##661B90	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	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: #661b90;
/* rgb */ color: rgb(102, 27, 144);
/* oklch */ color: oklch(40.6% 0.180 309.4);

Tailwind

colors: {
  custom: {
    50: '#9661b1',
    500: '#661b90',
    950: '#000000',
  },
}

SCSS

$custom: #661b90;
$custom-light: #9661b1;
$custom-dark: #000000;

JSON

{
  "hex": "#661b90",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 144
  },
  "hsl": {
    "h": 278.462,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40643,
    "c": 0.17965,
    "h": 309.4
  },
  "luminance": 0.05622
}

Semantic roles & 50–950 ramp

primary

#661B90

secondary

#73BF48

accent

#EB3D7B

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #661B90

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

Preview Lab → · Contrast checker → · Palette generator →