#66198C#66198C

#66198C is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.2% C 0.178 H 311.0°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#66198C
RGB	rgb(102, 25, 140)
HSL	hsl(280, 70%, 32%)
HSV	hsv(280, 82%, 55%)
CMYK	cmyk(27.1%, 82.1%, 0%, 45.1%)
CIE-LAB	lab(27.88, 51.22, -47.29)
CIE-LCH	lch(27.88, 69.71, 317.29°)
OKLab	oklab(40.15% 0.1167 -0.1341)
OKLCH	oklch(40.15% 0.178 311)
XYZ	xyz(10.5598, 5.4138, 25.2945)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66198C #3F8C19

analogous

#2D198C #66198C #8C1979

triadic

#66198C #8C6619 #198C66

tetradic

#66198C #8C2D19 #3F8C19 #19798C

square

#66198C #8C2D19 #3F8C19 #19798C

split-complementary

#66198C #798C19 #198C2D

monochromatic

#1A0624 #401058 #66198C #8C22C0 #AA42DD

Accessibility & contrast

On white

10.08

#66198C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#66198C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66198C

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66198C	#FFFFFF	#000000	##FFFFFF
##66198C	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8F

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#613653

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #66198c;
/* rgb */ color: rgb(102, 25, 140);
/* oklch */ color: oklch(40.2% 0.178 311.0);

Tailwind

colors: {
  custom: {
    50: '#9660ae',
    500: '#66198c',
    950: '#000000',
  },
}

SCSS

$custom: #66198c;
$custom-light: #9660ae;
$custom-dark: #000000;

JSON

{
  "hex": "#66198c",
  "rgb": {
    "r": 102,
    "g": 25,
    "b": 140
  },
  "hsl": {
    "h": 280.174,
    "s": 69.697,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40153,
    "c": 0.17778,
    "h": 311
  },
  "luminance": 0.05413
}

Semantic roles & 50–950 ramp

primary

#66198C

secondary

#6BBE43

accent

#ED3B76

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #66198C

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

Preview Lab → · Contrast checker → · Palette generator →