#663BC0#663BC0

#663BC0 is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.2% C 0.195 H 292.3°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#663BC0
RGB	rgb(102, 59, 192)
HSL	hsl(259, 53%, 49%)
HSV	hsv(259, 69%, 75%)
CMYK	cmyk(46.9%, 69.3%, 0%, 24.7%)
CIE-LAB	lab(37.40, 49.04, -63.11)
CIE-LCH	lch(37.40, 79.93, 307.85°)
OKLab	oklab(48.19% 0.0741 -0.1808)
OKLCH	oklch(48.19% 0.195 292.3)
XYZ	xyz(16.5552, 9.7579, 50.8701)
Luminance	0.0976 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BC0 #95C03B

analogous

#3B53C0 #663BC0 #A83BC0

triadic

#663BC0 #C0663B #3BC066

tetradic

#663BC0 #C03B53 #95C03B #3BC0A8

square

#663BC0 #C03B53 #95C03B #3BC0A8

split-complementary

#663BC0 #C0A83B #53C03B

monochromatic

#341E62 #4D2D91 #663BC0 #8A68D1 #AE97DF

Accessibility & contrast

On white

7.11

#663BC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#663BC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BC0

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BC0	#FFFFFF	#000000	##FFFFFF
##663BC0	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC4

Deuteranopia (green-blind)

#0055BD

Tritanopia (blue-blind)

#4A5C79

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663bc0;
/* rgb */ color: rgb(102, 59, 192);
/* oklch */ color: oklch(48.2% 0.195 292.3);

Tailwind

colors: {
  custom: {
    50: '#9974d4',
    500: '#663bc0',
    950: '#000000',
  },
}

SCSS

$custom: #663bc0;
$custom-light: #9974d4;
$custom-dark: #000000;

JSON

{
  "hex": "#663bc0",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 192
  },
  "hsl": {
    "h": 259.398,
    "s": 52.988,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48192,
    "c": 0.19543,
    "h": 292.3
  },
  "luminance": 0.09758
}

Semantic roles & 50–950 ramp

primary

#663BC0

secondary

#B6CA8C

accent

#DC4BAE

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #663BC0

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

Preview Lab → · Contrast checker → · Palette generator →