#663FBF#663FBF

#663FBF is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.7% C 0.189 H 291.8°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#663FBF
RGB	rgb(102, 63, 191)
HSL	hsl(258, 50%, 50%)
HSV	hsv(258, 67%, 75%)
CMYK	cmyk(46.6%, 67%, 0%, 25.1%)
CIE-LAB	lab(38.09, 46.65, -61.40)
CIE-LCH	lch(38.09, 77.11, 307.22°)
OKLab	oklab(48.66% 0.0704 -0.1758)
OKLCH	oklch(48.66% 0.189 291.8)
XYZ	xyz(16.6583, 10.1408, 50.3598)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.49

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FBF #98BF3F

analogous

#3F58BF #663FBF #A63FBF

triadic

#663FBF #BF663F #3FBF66

tetradic

#663FBF #BF3F58 #98BF3F #3FBFA6

square

#663FBF #BF3F58 #98BF3F #3FBFA6

split-complementary

#663FBF #BFA63F #58BF3F

monochromatic

#352163 #4D3091 #663FBF #8A6DCF #AF9BDE

Accessibility & contrast

On white

6.93

#663FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#663FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FBF

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FBF	#FFFFFF	#000000	##FFFFFF
##663FBF	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC3

Deuteranopia (green-blind)

#0057BC

Tritanopia (blue-blind)

#4B5E7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663fbf;
/* rgb */ color: rgb(102, 63, 191);
/* oklch */ color: oklch(48.7% 0.189 291.8);

Tailwind

colors: {
  custom: {
    50: '#9977d3',
    500: '#663fbf',
    950: '#000000',
  },
}

SCSS

$custom: #663fbf;
$custom-light: #9977d3;
$custom-dark: #000000;

JSON

{
  "hex": "#663fbf",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 191
  },
  "hsl": {
    "h": 258.281,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48661,
    "c": 0.18937,
    "h": 291.8
  },
  "luminance": 0.10141
}

Semantic roles & 50–950 ramp

primary

#663FBF

secondary

#B8CA90

accent

#DA4EAF

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #663FBF

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

Preview Lab → · Contrast checker → · Palette generator →