#663183#663183

#663183 is a dark, vivid violet. Relative luminance 0.067; OKLCH L 42.2% C 0.138 H 311.7°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#663183
RGB	rgb(102, 49, 131)
HSL	hsl(279, 46%, 35%)
HSV	hsv(279, 63%, 51%)
CMYK	cmyk(22.1%, 62.6%, 0%, 48.6%)
CIE-LAB	lab(31.02, 38.55, -36.63)
CIE-LCH	lch(31.02, 53.18, 316.47°)
OKLab	oklab(42.19% 0.0919 -0.103)
OKLCH	oklch(42.19% 0.138 311.7)
XYZ	xyz(10.6738, 6.6604, 22.1916)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663183 #4E8331

analogous

#3D3183 #663183 #833177

triadic

#663183 #836631 #318366

tetradic

#663183 #833D31 #4E8331 #317783

square

#663183 #833D31 #4E8331 #317783

split-complementary

#663183 #778331 #31833D

monochromatic

#21102A #432056 #663183 #8942B0 #A568C6

Accessibility & contrast

On white

9.01

#663183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#663183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663183

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663183	#FFFFFF	#000000	##FFFFFF
##663183	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124686

Deuteranopia (green-blind)

#2A4A81

Tritanopia (blue-blind)

#634055

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #663183;
/* rgb */ color: rgb(102, 49, 131);
/* oklch */ color: oklch(42.2% 0.138 311.7);

Tailwind

colors: {
  custom: {
    50: '#946ca7',
    500: '#663183',
    950: '#000000',
  },
}

SCSS

$custom: #663183;
$custom-light: #946ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#663183",
  "rgb": {
    "r": 102,
    "g": 49,
    "b": 131
  },
  "hsl": {
    "h": 278.78,
    "s": 45.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42189,
    "c": 0.13799,
    "h": 311.7
  },
  "luminance": 0.0666
}

Semantic roles & 50–950 ramp

primary

#663183

secondary

#7DAE62

accent

#D55381

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D070F

muted

#7E7A7F

Preview Lab

Preview with #663183

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

Preview Lab → · Contrast checker → · Palette generator →