#66188C#66188C

#66188C is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.1% C 0.179 H 311.1°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#66188C
RGB	rgb(102, 24, 140)
HSL	hsl(280, 71%, 32%)
HSV	hsv(280, 83%, 55%)
CMYK	cmyk(27.1%, 82.9%, 0%, 45.1%)
CIE-LAB	lab(27.77, 51.55, -47.47)
CIE-LCH	lch(27.77, 70.08, 317.36°)
OKLab	oklab(40.07% 0.1175 -0.1346)
OKLCH	oklch(40.07% 0.179 311.1)
XYZ	xyz(10.5388, 5.3718, 25.2875)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66188C #3E8C18

analogous

#2C188C #66188C #8C1878

triadic

#66188C #8C6618 #188C66

tetradic

#66188C #8C2C18 #3E8C18 #18788C

square

#66188C #8C2C18 #3E8C18 #18788C

split-complementary

#66188C #788C18 #188C2C

monochromatic

#1A0624 #400F58 #66188C #8C21C0 #AA40DE

Accessibility & contrast

On white

10.12

#66188C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#66188C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66188C

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66188C	#FFFFFF	#000000	##FFFFFF
##66188C	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8F

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#613653

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #66188c;
/* rgb */ color: rgb(102, 24, 140);
/* oklch */ color: oklch(40.1% 0.179 311.1);

Tailwind

colors: {
  custom: {
    50: '#9660ae',
    500: '#66188c',
    950: '#000000',
  },
}

SCSS

$custom: #66188c;
$custom-light: #9660ae;
$custom-dark: #000000;

JSON

{
  "hex": "#66188c",
  "rgb": {
    "r": 102,
    "g": 24,
    "b": 140
  },
  "hsl": {
    "h": 280.345,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.40073,
    "c": 0.1787,
    "h": 311.1
  },
  "luminance": 0.05371
}

Semantic roles & 50–950 ramp

primary

#66188C

secondary

#6ABF41

accent

#ED3A75

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #66188C

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

Preview Lab → · Contrast checker → · Palette generator →