#663BC2#663BC2

#663BC2 is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.4% C 0.198 H 291.9°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#663BC2
RGB	rgb(102, 59, 194)
HSL	hsl(259, 53%, 50%)
HSV	hsv(259, 70%, 76%)
CMYK	cmyk(47.4%, 69.6%, 0%, 23.9%)
CIE-LAB	lab(37.57, 49.59, -64.02)
CIE-LCH	lch(37.57, 80.98, 307.76°)
OKLab	oklab(48.36% 0.0738 -0.1835)
OKLCH	oklch(48.36% 0.198 291.9)
XYZ	xyz(16.7783, 9.8472, 52.0451)
Luminance	0.0985 (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

#663BC2 #97C23B

analogous

#3B54C2 #663BC2 #AA3BC2

triadic

#663BC2 #C2663B #3BC266

tetradic

#663BC2 #C23B54 #97C23B #3BC2AA

square

#663BC2 #C23B54 #97C23B #3BC2AA

split-complementary

#663BC2 #C2AA3B #54C23B

monochromatic

#351E64 #4D2D93 #663BC2 #8A69D1 #AF98E0

Accessibility & contrast

On white

7.07

#663BC2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#663BC2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BC2

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BC2	#FFFFFF	#000000	##FFFFFF
##663BC2	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC6

Deuteranopia (green-blind)

#0056BF

Tritanopia (blue-blind)

#495D7A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663bc2;
/* rgb */ color: rgb(102, 59, 194);
/* oklch */ color: oklch(48.4% 0.198 291.9);

Tailwind

colors: {
  custom: {
    50: '#9a74d5',
    500: '#663bc2',
    950: '#000000',
  },
}

SCSS

$custom: #663bc2;
$custom-light: #9a74d5;
$custom-dark: #000000;

JSON

{
  "hex": "#663bc2",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 194
  },
  "hsl": {
    "h": 259.111,
    "s": 53.36,
    "l": 49.608
  },
  "oklch": {
    "l": 0.48358,
    "c": 0.19777,
    "h": 291.9
  },
  "luminance": 0.09848
}

Semantic roles & 50–950 ramp

primary

#663BC2

secondary

#B8CB8E

accent

#DD4BAE

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0814

muted

#7F7B83

Preview Lab

Preview with #663BC2

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

Preview Lab → · Contrast checker → · Palette generator →