#663DCD#663DCD

#663DCD is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.5% C 0.208 H 289.6°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#663DCD
RGB	rgb(102, 61, 205)
HSL	hsl(257, 59%, 52%)
HSV	hsv(257, 70%, 80%)
CMYK	cmyk(50.2%, 70.2%, 0%, 19.6%)
CIE-LAB	lab(38.85, 51.60, -68.33)
CIE-LCH	lch(38.85, 85.63, 307.06°)
OKLab	oklab(49.55% 0.0699 -0.1962)
OKLCH	oklch(49.55% 0.208 289.6)
XYZ	xyz(18.1645, 10.5693, 58.8287)
Luminance	0.1057 (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

#663DCD #A4CD3D

analogous

#3D5CCD #663DCD #AE3DCD

triadic

#663DCD #CD663D #3DCD66

tetradic

#663DCD #CD3D5C #A4CD3D #3DCDAE

square

#663DCD #CD3D5C #A4CD3D #3DCDAE

split-complementary

#663DCD #CDAE3D #5CCD3D

monochromatic

#361D72 #4C2AA3 #663DCD #8C6EDA #B39EE6

Accessibility & contrast

On white

6.74

#663DCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#663DCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DCD

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DCD	#FFFFFF	#000000	##FFFFFF
##663DCD	1.00	6.74	3.11	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED1

Deuteranopia (green-blind)

#0058CA

Tritanopia (blue-blind)

#426281

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #663dcd;
/* rgb */ color: rgb(102, 61, 205);
/* oklch */ color: oklch(49.5% 0.208 289.6);

Tailwind

colors: {
  custom: {
    50: '#9b76dd',
    500: '#663dcd',
    950: '#000000',
  },
}

SCSS

$custom: #663dcd;
$custom-light: #9b76dd;
$custom-dark: #000000;

JSON

{
  "hex": "#663dcd",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 205
  },
  "hsl": {
    "h": 257.083,
    "s": 59.016,
    "l": 52.157
  },
  "oklch": {
    "l": 0.4955,
    "c": 0.20825,
    "h": 289.6
  },
  "luminance": 0.1057
}

Semantic roles & 50–950 ramp

primary

#663DCD

secondary

#C0D293

accent

#E246B6

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663DCD

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

Preview Lab → · Contrast checker → · Palette generator →