#663DD7#663DD7

#663DD7 is a mid, highly saturated violet. Relative luminance 0.111; OKLCH L 50.4% C 0.220 H 288.0°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#663DD7
RGB	rgb(102, 61, 215)
HSL	hsl(256, 66%, 54%)
HSV	hsv(256, 72%, 84%)
CMYK	cmyk(52.6%, 71.6%, 0%, 15.7%)
CIE-LAB	lab(39.69, 54.38, -72.71)
CIE-LCH	lch(39.69, 90.80, 306.79°)
OKLab	oklab(50.41% 0.0679 -0.209)
OKLCH	oklch(50.41% 0.22 288)
XYZ	xyz(19.4104, 11.0676, 65.3903)
Luminance	0.1107 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DD7 #AED73D

analogous

#3D61D7 #663DD7 #B33DD7

triadic

#663DD7 #D7663D #3DD766

tetradic

#663DD7 #D73D61 #AED73D #3DD7B3

square

#663DD7 #D73D61 #AED73D #3DD7B3

split-complementary

#663DD7 #D7B33D #61D73D

monochromatic

#351A7F #4A25B2 #663DD7 #8E70E1 #B6A2EC

Accessibility & contrast

On white

6.53

#663DD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#663DD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663DD7

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DD7	#FFFFFF	#000000	##FFFFFF
##663DD7	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061DC

Deuteranopia (green-blind)

#0059D4

Tritanopia (blue-blind)

#3A6686

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #663dd7;
/* rgb */ color: rgb(102, 61, 215);
/* oklch */ color: oklch(50.4% 0.220 288.0);

Tailwind

colors: {
  custom: {
    50: '#9c76e5',
    500: '#663dd7',
    950: '#000000',
  },
}

SCSS

$custom: #663dd7;
$custom-light: #9c76e5;
$custom-dark: #000000;

JSON

{
  "hex": "#663dd7",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 215
  },
  "hsl": {
    "h": 255.974,
    "s": 65.812,
    "l": 54.118
  },
  "oklch": {
    "l": 0.50414,
    "c": 0.21977,
    "h": 288
  },
  "luminance": 0.11069
}

Semantic roles & 50–950 ramp

primary

#663DD7

secondary

#C7D997

accent

#E93FBC

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #663DD7

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

Preview Lab → · Contrast checker → · Palette generator →