#663AE3#663AE3

#663AE3 is a mid, highly saturated violet. Relative luminance 0.114; OKLCH L 51.1% C 0.236 H 286.6°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#663AE3
RGB	rgb(102, 58, 227)
HSL	hsl(256, 75%, 56%)
HSV	hsv(256, 74%, 89%)
CMYK	cmyk(55.1%, 74.4%, 0%, 11%)
CIE-LAB	lab(40.24, 59.16, -78.69)
CIE-LCH	lch(40.24, 98.44, 306.94°)
OKLab	oklab(51.12% 0.0674 -0.2265)
OKLCH	oklch(51.12% 0.236 286.6)
XYZ	xyz(20.8535, 11.3958, 73.7589)
Luminance	0.1140 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663AE3 #B7E33A

analogous

#3A62E3 #663AE3 #BA3AE3

triadic

#663AE3 #E3663A #3AE366

tetradic

#663AE3 #E33A62 #B7E33A #3AE3BA

square

#663AE3 #E33A62 #B7E33A #3AE3BA

split-complementary

#663AE3 #E3BA3A #62E33A

monochromatic

#34148E #481CC4 #663AE3 #9070EB #B9A5F2

Accessibility & contrast

On white

6.40

#663AE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#663AE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663AE3

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663AE3	#FFFFFF	#000000	##FFFFFF
##663AE3	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E8

Deuteranopia (green-blind)

#005AE0

Tritanopia (blue-blind)

#2D698C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #663ae3;
/* rgb */ color: rgb(102, 58, 227);
/* oklch */ color: oklch(51.1% 0.236 286.6);

Tailwind

colors: {
  custom: {
    50: '#9e75ed',
    500: '#663ae3',
    950: '#000000',
  },
}

SCSS

$custom: #663ae3;
$custom-light: #9e75ed;
$custom-dark: #000000;

JSON

{
  "hex": "#663ae3",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 227
  },
  "hsl": {
    "h": 255.621,
    "s": 75.111,
    "l": 55.882
  },
  "oklch": {
    "l": 0.51123,
    "c": 0.2363,
    "h": 286.6
  },
  "luminance": 0.11397
}

Semantic roles & 50–950 ramp

primary

#663AE3

secondary

#CDDF99

accent

#F236C1

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#100916

muted

#7F7B84

Preview Lab

Preview with #663AE3

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

Preview Lab → · Contrast checker → · Palette generator →