#66188E#66188E

#66188E is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.2% C 0.181 H 310.4°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#66188E
RGB	rgb(102, 24, 142)
HSL	hsl(280, 71%, 33%)
HSV	hsv(280, 83%, 56%)
CMYK	cmyk(28.2%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(27.93, 51.98, -48.45)
CIE-LCH	lch(27.93, 71.06, 317.01°)
OKLab	oklab(40.24% 0.117 -0.1375)
OKLCH	oklch(40.24% 0.181 310.4)
XYZ	xyz(10.6876, 5.4313, 26.0713)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66188E #408E18

analogous

#2B188E #66188E #8E187B

triadic

#66188E #8E6618 #188E66

tetradic

#66188E #8E2B18 #408E18 #187B8E

square

#66188E #8E2B18 #408E18 #187B8E

split-complementary

#66188E #7B8E18 #188E2B

monochromatic

#1B0625 #400F5A #66188E #8C21C2 #AA41DF

Accessibility & contrast

On white

10.07

#66188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#66188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66188E

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66188E	#FFFFFF	#000000	##FFFFFF
##66188E	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F91

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#603754

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #66188e;
/* rgb */ color: rgb(102, 24, 142);
/* oklch */ color: oklch(40.2% 0.181 310.4);

Tailwind

colors: {
  custom: {
    50: '#9660b0',
    500: '#66188e',
    950: '#000000',
  },
}

SCSS

$custom: #66188e;
$custom-light: #9660b0;
$custom-dark: #000000;

JSON

{
  "hex": "#66188e",
  "rgb": {
    "r": 102,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 279.661,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40236,
    "c": 0.18055,
    "h": 310.4
  },
  "luminance": 0.05431
}

Semantic roles & 50–950 ramp

primary

#66188E

secondary

#6DC042

accent

#EE3A77

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #66188E

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

Preview Lab → · Contrast checker → · Palette generator →