#663B9C#663B9C

#663B9C is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.4% C 0.152 H 300.9°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#663B9C
RGB	rgb(102, 59, 156)
HSL	hsl(267, 45%, 42%)
HSV	hsv(267, 62%, 61%)
CMYK	cmyk(34.6%, 62.2%, 0%, 38.8%)
CIE-LAB	lab(34.71, 39.33, -46.06)
CIE-LCH	lch(34.71, 60.57, 310.50°)
OKLab	oklab(45.4% 0.0783 -0.1307)
OKLCH	oklch(45.4% 0.152 300.9)
XYZ	xyz(13.0428, 8.3529, 32.3712)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B9C #719C3B

analogous

#3B419C #663B9C #973B9C

triadic

#663B9C #9C663B #3B9C66

tetradic

#663B9C #9C3B41 #719C3B #3B9C97

square

#663B9C #9C3B41 #719C3B #3B9C97

split-complementary

#663B9C #9C973B #419C3B

monochromatic

#2C1943 #492A70 #663B9C #8455BF #A482D0

Accessibility & contrast

On white

7.86

#663B9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#663B9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B9C

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B9C	#FFFFFF	#000000	##FFFFFF
##663B9C	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00519F

Deuteranopia (green-blind)

#1B519A

Tritanopia (blue-blind)

#5B5066

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663b9c;
/* rgb */ color: rgb(102, 59, 156);
/* oklch */ color: oklch(45.4% 0.152 300.9);

Tailwind

colors: {
  custom: {
    50: '#9573ba',
    500: '#663b9c',
    950: '#000000',
  },
}

SCSS

$custom: #663b9c;
$custom-light: #9573ba;
$custom-dark: #000000;

JSON

{
  "hex": "#663b9c",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 156
  },
  "hsl": {
    "h": 266.598,
    "s": 45.116,
    "l": 42.157
  },
  "oklch": {
    "l": 0.454,
    "c": 0.15232,
    "h": 300.9
  },
  "luminance": 0.08353
}

Semantic roles & 50–950 ramp

primary

#663B9C

secondary

#9DB979

accent

#D5539B

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663B9C

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

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