#66188D#66188D

#66188D is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.2% C 0.180 H 310.7°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#66188D
RGB	rgb(102, 24, 141)
HSL	hsl(280, 71%, 32%)
HSV	hsv(280, 83%, 55%)
CMYK	cmyk(27.7%, 83%, 0%, 44.7%)
CIE-LAB	lab(27.85, 51.77, -47.96)
CIE-LCH	lch(27.85, 70.57, 317.18°)
OKLab	oklab(40.16% 0.1172 -0.1361)
OKLCH	oklch(40.16% 0.18 310.7)
XYZ	xyz(10.6129, 5.4014, 25.6776)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66188D #3F8D18

analogous

#2C188D #66188D #8D187A

triadic

#66188D #8D6618 #188D66

tetradic

#66188D #8D2C18 #3F8D18 #187A8D

square

#66188D #8D2C18 #3F8D18 #187A8D

split-complementary

#66188D #7A8D18 #188D2C

monochromatic

#1A0624 #400F59 #66188D #8C21C1 #AA41DF

Accessibility & contrast

On white

10.10

#66188D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#66188D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66188D

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66188D	#FFFFFF	#000000	##FFFFFF
##66188D	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#613654

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #66188d;
/* rgb */ color: rgb(102, 24, 141);
/* oklch */ color: oklch(40.2% 0.180 310.7);

Tailwind

colors: {
  custom: {
    50: '#9660af',
    500: '#66188d',
    950: '#000000',
  },
}

SCSS

$custom: #66188d;
$custom-light: #9660af;
$custom-dark: #000000;

JSON

{
  "hex": "#66188d",
  "rgb": {
    "r": 102,
    "g": 24,
    "b": 141
  },
  "hsl": {
    "h": 280,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40155,
    "c": 0.17963,
    "h": 310.7
  },
  "luminance": 0.05401
}

Semantic roles & 50–950 ramp

primary

#66188D

secondary

#6BBF42

accent

#EE3A76

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #66188D

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

Preview Lab → · Contrast checker → · Palette generator →