#66187C#66187C

#66187C is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.8% C 0.164 H 317.4°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#66187C
RGB	rgb(102, 24, 124)
HSL	hsl(287, 68%, 29%)
HSV	hsv(287, 81%, 49%)
CMYK	cmyk(17.7%, 80.6%, 0%, 51.4%)
CIE-LAB	lab(26.55, 48.20, -39.42)
CIE-LCH	lch(26.55, 62.26, 320.72°)
OKLab	oklab(38.83% 0.1208 -0.111)
OKLCH	oklch(38.83% 0.164 317.4)
XYZ	xyz(9.4437, 4.9337, 19.5197)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66187C #2E7C18

analogous

#34187C #66187C #7C1860

triadic

#66187C #7C6618 #187C66

tetradic

#66187C #7C3418 #2E7C18 #18607C

square

#66187C #7C3418 #2E7C18 #18607C

split-complementary

#66187C #607C18 #187C34

monochromatic

#15051A #3C0E49 #66187C #9022AF #B536D8

Accessibility & contrast

On white

10.57

#66187C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#66187C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66187C

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66187C	#FFFFFF	#000000	##FFFFFF
##66187C	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7F

Deuteranopia (green-blind)

#1B417A

Tritanopia (blue-blind)

#652E4A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #66187c;
/* rgb */ color: rgb(102, 24, 124);
/* oklch */ color: oklch(38.8% 0.164 317.4);

Tailwind

colors: {
  custom: {
    50: '#955fa2',
    500: '#66187c',
    950: '#000000',
  },
}

SCSS

$custom: #66187c;
$custom-light: #955fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#66187c",
  "rgb": {
    "r": 102,
    "g": 24,
    "b": 124
  },
  "hsl": {
    "h": 286.8,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.38829,
    "c": 0.16402,
    "h": 317.4
  },
  "luminance": 0.04933
}

Semantic roles & 50–950 ramp

primary

#66187C

secondary

#58B13F

accent

#EA3D63

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E050F

muted

#7E797F

Preview Lab

Preview with #66187C

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

Preview Lab → · Contrast checker → · Palette generator →