#663A97#663A97

#663A97 is a dark, vivid violet. Relative luminance 0.081; OKLCH L 44.9% C 0.148 H 302.7°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#663A97
RGB	rgb(102, 58, 151)
HSL	hsl(268, 44%, 41%)
HSV	hsv(268, 62%, 59%)
CMYK	cmyk(32.5%, 61.6%, 0%, 40.8%)
CIE-LAB	lab(34.16, 38.59, -43.90)
CIE-LCH	lch(34.16, 58.45, 311.31°)
OKLab	oklab(44.89% 0.0797 -0.1244)
OKLCH	oklch(44.89% 0.148 302.7)
XYZ	xyz(12.5772, 8.0853, 30.1702)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A97 #6B973A

analogous

#3A3C97 #663A97 #943A97

triadic

#663A97 #97663A #3A9766

tetradic

#663A97 #973A3C #6B973A #3A9794

square

#663A97 #973A3C #6B973A #3A9794

split-complementary

#663A97 #97943A #3C973A

monochromatic

#2A183F #48296B #663A97 #8452BC #A47ECD

Accessibility & contrast

On white

8.02

#663A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#663A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A97

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A97	#FFFFFF	#000000	##FFFFFF
##663A97	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054F9A

Deuteranopia (green-blind)

#205095

Tritanopia (blue-blind)

#5D4D63

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #663a97;
/* rgb */ color: rgb(102, 58, 151);
/* oklch */ color: oklch(44.9% 0.148 302.7);

Tailwind

colors: {
  custom: {
    50: '#9572b6',
    500: '#663a97',
    950: '#000000',
  },
}

SCSS

$custom: #663a97;
$custom-light: #9572b6;
$custom-dark: #000000;

JSON

{
  "hex": "#663a97",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 151
  },
  "hsl": {
    "h": 268.387,
    "s": 44.498,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44893,
    "c": 0.14771,
    "h": 302.7
  },
  "luminance": 0.08085
}

Semantic roles & 50–950 ramp

primary

#663A97

secondary

#98B776

accent

#D45497

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #663A97

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

Preview Lab → · Contrast checker → · Palette generator →