#663E9F#663E9F

#663E9F is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.1% C 0.152 H 299.4°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#663E9F
RGB	rgb(102, 62, 159)
HSL	hsl(265, 44%, 43%)
HSV	hsv(265, 61%, 62%)
CMYK	cmyk(35.8%, 61%, 0%, 37.6%)
CIE-LAB	lab(35.54, 38.44, -46.52)
CIE-LCH	lch(35.54, 60.35, 309.56°)
OKLab	oklab(46.08% 0.0744 -0.1321)
OKLCH	oklch(46.08% 0.152 299.4)
XYZ	xyz(13.4586, 8.7731, 33.7785)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663E9F #779F3E

analogous

#3E479F #663E9F #963E9F

triadic

#663E9F #9F663E #3E9F66

tetradic

#663E9F #9F3E47 #779F3E #3E9F96

square

#663E9F #9F3E47 #779F3E #3E9F96

split-complementary

#663E9F #9F963E #479F3E

monochromatic

#2E1C47 #4A2D73 #663E9F #845BBF #A587D0

Accessibility & contrast

On white

7.62

#663E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#663E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663E9F

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663E9F	#FFFFFF	#000000	##FFFFFF
##663E9F	1.00	7.62	2.75	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A2

Deuteranopia (green-blind)

#1B539D

Tritanopia (blue-blind)

#5A5368

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663e9f;
/* rgb */ color: rgb(102, 62, 159);
/* oklch */ color: oklch(46.1% 0.152 299.4);

Tailwind

colors: {
  custom: {
    50: '#9675bc',
    500: '#663e9f',
    950: '#000000',
  },
}

SCSS

$custom: #663e9f;
$custom-light: #9675bc;
$custom-dark: #000000;

JSON

{
  "hex": "#663e9f",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 264.742,
    "s": 43.891,
    "l": 43.333
  },
  "oklch": {
    "l": 0.46075,
    "c": 0.15158,
    "h": 299.4
  },
  "luminance": 0.08773
}

Semantic roles & 50–950 ramp

primary

#663E9F

secondary

#A2BB7E

accent

#D4549F

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663E9F

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

Preview Lab → · Contrast checker → · Palette generator →