#663189#663189

#663189 is a dark, vivid violet. Relative luminance 0.068; OKLCH L 42.6% C 0.145 H 309.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#663189
RGB	rgb(102, 49, 137)
HSL	hsl(276, 47%, 36%)
HSV	hsv(276, 64%, 54%)
CMYK	cmyk(25.5%, 64.2%, 0%, 46.3%)
CIE-LAB	lab(31.41, 39.98, -39.73)
CIE-LCH	lch(31.41, 56.37, 315.18°)
OKLab	oklab(42.6% 0.0917 -0.1121)
OKLCH	oklch(42.6% 0.145 309.3)
XYZ	xyz(11.0923, 6.8277, 24.3956)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663189 #548931

analogous

#3A3189 #663189 #893180

triadic

#663189 #896631 #318966

tetradic

#663189 #893A31 #548931 #318089

square

#663189 #893A31 #548931 #318089

split-complementary

#663189 #808931 #31893A

monochromatic

#23112F #44215C #663189 #8841B6 #A46BCA

Accessibility & contrast

On white

8.88

#663189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#663189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663189

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663189	#FFFFFF	#000000	##FFFFFF
##663189	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04488C

Deuteranopia (green-blind)

#254B87

Tritanopia (blue-blind)

#614258

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #663189;
/* rgb */ color: rgb(102, 49, 137);
/* oklch */ color: oklch(42.6% 0.145 309.3);

Tailwind

colors: {
  custom: {
    50: '#956cac',
    500: '#663189',
    950: '#000000',
  },
}

SCSS

$custom: #663189;
$custom-light: #956cac;
$custom-dark: #000000;

JSON

{
  "hex": "#663189",
  "rgb": {
    "r": 102,
    "g": 49,
    "b": 137
  },
  "hsl": {
    "h": 276.136,
    "s": 47.312,
    "l": 36.471
  },
  "oklch": {
    "l": 0.42598,
    "c": 0.14482,
    "h": 309.3
  },
  "luminance": 0.06828
}

Semantic roles & 50–950 ramp

primary

#663189

secondary

#83B164

accent

#D75186

background

#F9F6FA

surface

#F2ECF4

border

#CCC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #663189

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

Preview Lab → · Contrast checker → · Palette generator →