#663F97#663F97

#663F97 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.7% C 0.140 H 301.5°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#663F97
RGB	rgb(102, 63, 151)
HSL	hsl(267, 41%, 42%)
HSV	hsv(267, 58%, 59%)
CMYK	cmyk(32.5%, 58.3%, 0%, 40.8%)
CIE-LAB	lab(35.23, 35.74, -42.19)
CIE-LCH	lch(35.23, 55.29, 310.27°)
OKLab	oklab(45.68% 0.0732 -0.1193)
OKLCH	oklch(45.68% 0.14 301.5)
XYZ	xyz(12.8416, 8.6141, 30.2583)
Luminance	0.0861 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F97 #70973F

analogous

#3F4497 #663F97 #923F97

triadic

#663F97 #97663F #3F9766

tetradic

#663F97 #973F44 #70973F #3F9792

square

#663F97 #973F44 #70973F #3F9792

split-complementary

#663F97 #97923F #44973F

monochromatic

#2C1B41 #492D6C #663F97 #8459BA #A485CC

Accessibility & contrast

On white

7.71

#663F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#663F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F97

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F97	#FFFFFF	#000000	##FFFFFF
##663F97	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18529A

Deuteranopia (green-blind)

#285295

Tritanopia (blue-blind)

#5C5165

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #663f97;
/* rgb */ color: rgb(102, 63, 151);
/* oklch */ color: oklch(45.7% 0.140 301.5);

Tailwind

colors: {
  custom: {
    50: '#9576b6',
    500: '#663f97',
    950: '#000000',
  },
}

SCSS

$custom: #663f97;
$custom-light: #9576b6;
$custom-dark: #000000;

JSON

{
  "hex": "#663f97",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 151
  },
  "hsl": {
    "h": 266.591,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45676,
    "c": 0.13999,
    "h": 301.5
  },
  "luminance": 0.08614
}

Semantic roles & 50–950 ramp

primary

#663F97

secondary

#9CB67C

accent

#D1579B

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #663F97

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

Preview Lab → · Contrast checker → · Palette generator →