#663DDE#663DDE

#663DDE is a mid, highly saturated violet. Relative luminance 0.114; OKLCH L 51.0% C 0.228 H 286.9°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#663DDE
RGB	rgb(102, 61, 222)
HSL	hsl(255, 71%, 55%)
HSV	hsv(255, 73%, 87%)
CMYK	cmyk(54.1%, 72.5%, 0%, 12.9%)
CIE-LAB	lab(40.30, 56.33, -75.73)
CIE-LCH	lch(40.30, 94.38, 306.64°)
OKLab	oklab(51.03% 0.0664 -0.2178)
OKLCH	oklch(51.03% 0.228 286.9)
XYZ	xyz(20.3291, 11.4351, 70.2291)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DDE #B5DE3D

analogous

#3D64DE #663DDE #B73DDE

triadic

#663DDE #DE663D #3DDE66

tetradic

#663DDE #DE3D64 #B5DE3D #3DDEB7

square

#663DDE #DE3D64 #B5DE3D #3DDEB7

split-complementary

#663DDE #DEB73D #64DE3D

monochromatic

#341789 #4820BE #663DDE #8F71E7 #B8A6F0

Accessibility & contrast

On white

6.39

#663DDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#663DDE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DDE

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DDE	#FFFFFF	#000000	##FFFFFF
##663DDE	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E3

Deuteranopia (green-blind)

#005ADB

Tritanopia (blue-blind)

#33698A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #663dde;
/* rgb */ color: rgb(102, 61, 222);
/* oklch */ color: oklch(51.0% 0.228 286.9);

Tailwind

colors: {
  custom: {
    50: '#9d77ea',
    500: '#663dde',
    950: '#000000',
  },
}

SCSS

$custom: #663dde;
$custom-light: #9d77ea;
$custom-dark: #000000;

JSON

{
  "hex": "#663dde",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 222
  },
  "hsl": {
    "h": 255.28,
    "s": 70.925,
    "l": 55.49
  },
  "oklch": {
    "l": 0.51032,
    "c": 0.22772,
    "h": 286.9
  },
  "luminance": 0.11436
}

Semantic roles & 50–950 ramp

primary

#663DDE

secondary

#CCDD9A

accent

#EE3AC0

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#100916

muted

#7F7B84

Preview Lab

Preview with #663DDE

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

Preview Lab → · Contrast checker → · Palette generator →