#66188F#66188F

#66188F is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.3% C 0.181 H 310.0°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#66188F
RGB	rgb(102, 24, 143)
HSL	hsl(279, 71%, 33%)
HSV	hsv(279, 83%, 56%)
CMYK	cmyk(28.7%, 83.2%, 0%, 43.9%)
CIE-LAB	lab(28.01, 52.20, -48.94)
CIE-LCH	lch(28.01, 71.55, 316.85°)
OKLab	oklab(40.32% 0.1167 -0.139)
OKLCH	oklch(40.32% 0.181 310)
XYZ	xyz(10.7631, 5.4615, 26.4685)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66188F #418F18

analogous

#2B188F #66188F #8F187C

triadic

#66188F #8F6618 #188F66

tetradic

#66188F #8F2B18 #418F18 #187C8F

square

#66188F #8F2B18 #418F18 #187C8F

split-complementary

#66188F #7C8F18 #188F2B

monochromatic

#1B0626 #410F5B #66188F #8B21C3 #A942DF

Accessibility & contrast

On white

10.04

#66188F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#66188F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66188F

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66188F	#FFFFFF	#000000	##FFFFFF
##66188F	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00438D

Tritanopia (blue-blind)

#603755

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #66188f;
/* rgb */ color: rgb(102, 24, 143);
/* oklch */ color: oklch(40.3% 0.181 310.0);

Tailwind

colors: {
  custom: {
    50: '#9660b1',
    500: '#66188f',
    950: '#000000',
  },
}

SCSS

$custom: #66188f;
$custom-light: #9660b1;
$custom-dark: #000000;

JSON

{
  "hex": "#66188f",
  "rgb": {
    "r": 102,
    "g": 24,
    "b": 143
  },
  "hsl": {
    "h": 279.328,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40318,
    "c": 0.18148,
    "h": 310
  },
  "luminance": 0.05461
}

Semantic roles & 50–950 ramp

primary

#66188F

secondary

#6EC043

accent

#EE3A78

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #66188F

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

Preview Lab → · Contrast checker → · Palette generator →