#663A9F#663A9F

#663A9F is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.5% C 0.157 H 300.3°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#663A9F
RGB	rgb(102, 58, 159)
HSL	hsl(266, 47%, 43%)
HSV	hsv(266, 64%, 62%)
CMYK	cmyk(35.8%, 63.5%, 0%, 37.6%)
CIE-LAB	lab(34.71, 40.67, -47.87)
CIE-LCH	lch(34.71, 62.81, 310.36°)
OKLab	oklab(45.47% 0.0793 -0.136)
OKLCH	oklch(45.47% 0.157 300.3)
XYZ	xyz(13.2490, 8.3540, 33.7086)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A9F #739F3A

analogous

#3A409F #663A9F #993A9F

triadic

#663A9F #9F663A #3A9F66

tetradic

#663A9F #9F3A40 #739F3A #3A9F99

square

#663A9F #9F3A40 #739F3A #3A9F99

split-complementary

#663A9F #9F993A #409F3A

monochromatic

#2C1945 #492A72 #663A9F #8455C1 #A582D1

Accessibility & contrast

On white

7.86

#663A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#663A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A9F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A9F	#FFFFFF	#000000	##FFFFFF
##663A9F	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)

#0051A2

Deuteranopia (green-blind)

#12519D

Tritanopia (blue-blind)

#5A5067

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663a9f;
/* rgb */ color: rgb(102, 58, 159);
/* oklch */ color: oklch(45.5% 0.157 300.3);

Tailwind

colors: {
  custom: {
    50: '#9673bc',
    500: '#663a9f',
    950: '#000000',
  },
}

SCSS

$custom: #663a9f;
$custom-light: #9673bc;
$custom-dark: #000000;

JSON

{
  "hex": "#663a9f",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 159
  },
  "hsl": {
    "h": 266.139,
    "s": 46.544,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45468,
    "c": 0.15744,
    "h": 300.3
  },
  "luminance": 0.08354
}

Semantic roles & 50–950 ramp

primary

#663A9F

secondary

#9FBB7A

accent

#D6529C

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663A9F

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

Preview Lab → · Contrast checker → · Palette generator →