#66187D#66187D

#66187D is a dark, vivid purple. Relative luminance 0.050; OKLCH L 38.9% C 0.165 H 317.0°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#66187D
RGB	rgb(102, 24, 125)
HSL	hsl(286, 68%, 29%)
HSV	hsv(286, 81%, 49%)
CMYK	cmyk(18.4%, 80.8%, 0%, 51%)
CIE-LAB	lab(26.62, 48.40, -39.93)
CIE-LCH	lch(26.62, 62.75, 320.48°)
OKLab	oklab(38.9% 0.1206 -0.1125)
OKLCH	oklch(38.9% 0.165 317)
XYZ	xyz(9.5072, 4.9591, 19.8545)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66187D #2F7D18

analogous

#34187D #66187D #7D1862

triadic

#66187D #7D6618 #187D66

tetradic

#66187D #7D3418 #2F7D18 #18627D

square

#66187D #7D3418 #2F7D18 #18627D

split-complementary

#66187D #627D18 #187D34

monochromatic

#15051A #3C0E4A #66187D #9022B0 #B437D9

Accessibility & contrast

On white

10.54

#66187D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#66187D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66187D

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66187D	#FFFFFF	#000000	##FFFFFF
##66187D	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A80

Deuteranopia (green-blind)

#19417B

Tritanopia (blue-blind)

#652F4A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #66187d;
/* rgb */ color: rgb(102, 24, 125);
/* oklch */ color: oklch(38.9% 0.165 317.0);

Tailwind

colors: {
  custom: {
    50: '#955fa3',
    500: '#66187d',
    950: '#000000',
  },
}

SCSS

$custom: #66187d;
$custom-light: #955fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#66187d",
  "rgb": {
    "r": 102,
    "g": 24,
    "b": 125
  },
  "hsl": {
    "h": 286.337,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38904,
    "c": 0.16493,
    "h": 317
  },
  "luminance": 0.04959
}

Semantic roles & 50–950 ramp

primary

#66187D

secondary

#59B23F

accent

#EB3D65

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #66187D

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

Preview Lab → · Contrast checker → · Palette generator →