#663BA0#663BA0

#663BA0 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.7% C 0.157 H 299.8°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#663BA0
RGB	rgb(102, 59, 160)
HSL	hsl(266, 46%, 43%)
HSV	hsv(266, 63%, 63%)
CMYK	cmyk(36.2%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(34.98, 40.39, -48.03)
CIE-LCH	lch(34.98, 62.75, 310.06°)
OKLab	oklab(45.69% 0.0781 -0.1365)
OKLCH	oklch(45.69% 0.157 299.8)
XYZ	xyz(13.3871, 8.4907, 34.1845)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BA0 #75A03B

analogous

#3B42A0 #663BA0 #993BA0

triadic

#663BA0 #A0663B #3BA066

tetradic

#663BA0 #A03B42 #75A03B #3BA099

square

#663BA0 #A03B42 #75A03B #3BA099

split-complementary

#663BA0 #A0993B #42A03B

monochromatic

#2D1A47 #492B73 #663BA0 #8457C1 #A584D2

Accessibility & contrast

On white

7.78

#663BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#663BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BA0

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BA0	#FFFFFF	#000000	##FFFFFF
##663BA0	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A3

Deuteranopia (green-blind)

#13519E

Tritanopia (blue-blind)

#595168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663ba0;
/* rgb */ color: rgb(102, 59, 160);
/* oklch */ color: oklch(45.7% 0.157 299.8);

Tailwind

colors: {
  custom: {
    50: '#9673bd',
    500: '#663ba0',
    950: '#000000',
  },
}

SCSS

$custom: #663ba0;
$custom-light: #9673bd;
$custom-dark: #000000;

JSON

{
  "hex": "#663ba0",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 265.545,
    "s": 46.119,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4569,
    "c": 0.15721,
    "h": 299.8
  },
  "luminance": 0.08491
}

Semantic roles & 50–950 ramp

primary

#663BA0

secondary

#A0BC7B

accent

#D6529E

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663BA0

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

Preview Lab → · Contrast checker → · Palette generator →