#663EC3#663EC3

#663EC3 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.8% C 0.195 H 291.2°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#663EC3
RGB	rgb(102, 62, 195)
HSL	hsl(258, 53%, 50%)
HSV	hsv(258, 68%, 76%)
CMYK	cmyk(47.7%, 68.2%, 0%, 23.5%)
CIE-LAB	lab(38.22, 48.30, -63.55)
CIE-LCH	lch(38.22, 79.82, 307.24°)
OKLab	oklab(48.85% 0.0708 -0.1821)
OKLCH	oklch(48.85% 0.195 291.2)
XYZ	xyz(17.0497, 10.2095, 52.6915)
Luminance	0.1021 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.19

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EC3 #9BC33E

analogous

#3E58C3 #663EC3 #A83EC3

triadic

#663EC3 #C3663E #3EC366

tetradic

#663EC3 #C33E58 #9BC33E #3EC3A8

square

#663EC3 #C33E58 #9BC33E #3EC3A8

split-complementary

#663EC3 #C3A83E #58C33E

monochromatic

#352067 #4D2E95 #663EC3 #8B6DD2 #B09BE0

Accessibility & contrast

On white

6.90

#663EC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#663EC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663EC3

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EC3	#FFFFFF	#000000	##FFFFFF
##663EC3	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC7

Deuteranopia (green-blind)

#0057C0

Tritanopia (blue-blind)

#485F7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663ec3;
/* rgb */ color: rgb(102, 62, 195);
/* oklch */ color: oklch(48.8% 0.195 291.2);

Tailwind

colors: {
  custom: {
    50: '#9a76d6',
    500: '#663ec3',
    950: '#000000',
  },
}

SCSS

$custom: #663ec3;
$custom-light: #9a76d6;
$custom-dark: #000000;

JSON

{
  "hex": "#663ec3",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 195
  },
  "hsl": {
    "h": 258.045,
    "s": 52.569,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48847,
    "c": 0.19536,
    "h": 291.2
  },
  "luminance": 0.1021
}

Semantic roles & 50–950 ramp

primary

#663EC3

secondary

#BACC91

accent

#DC4CB1

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0914

muted

#7F7B83

Preview Lab

Preview with #663EC3

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

Preview Lab → · Contrast checker → · Palette generator →