#663D95#663D95

#663D95 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.2% C 0.141 H 302.6°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#663D95
RGB	rgb(102, 61, 149)
HSL	hsl(268, 42%, 41%)
HSV	hsv(268, 59%, 58%)
CMYK	cmyk(31.5%, 59.1%, 0%, 41.6%)
CIE-LAB	lab(34.67, 36.37, -41.88)
CIE-LCH	lch(34.67, 55.47, 310.97°)
OKLab	oklab(45.22% 0.0758 -0.1184)
OKLCH	oklch(45.22% 0.141 302.6)
XYZ	xyz(12.5718, 8.3322, 29.3739)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D95 #6C953D

analogous

#3D4095 #663D95 #923D95

triadic

#663D95 #95663D #3D9566

tetradic

#663D95 #953D40 #6C953D #3D9592

square

#663D95 #953D40 #6C953D #3D9592

split-complementary

#663D95 #95923D #40953D

monochromatic

#2B193E #482B6A #663D95 #8456BA #A481CB

Accessibility & contrast

On white

7.88

#663D95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#663D95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D95

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D95	#FFFFFF	#000000	##FFFFFF
##663D95	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165198

Deuteranopia (green-blind)

#275193

Tritanopia (blue-blind)

#5D4F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #663d95;
/* rgb */ color: rgb(102, 61, 149);
/* oklch */ color: oklch(45.2% 0.141 302.6);

Tailwind

colors: {
  custom: {
    50: '#9574b5',
    500: '#663d95',
    950: '#000000',
  },
}

SCSS

$custom: #663d95;
$custom-light: #9574b5;
$custom-dark: #000000;

JSON

{
  "hex": "#663d95",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 149
  },
  "hsl": {
    "h": 267.955,
    "s": 41.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.4522,
    "c": 0.14062,
    "h": 302.6
  },
  "luminance": 0.08332
}

Semantic roles & 50–950 ramp

primary

#663D95

secondary

#99B578

accent

#D25698

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #663D95

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

Preview Lab → · Contrast checker → · Palette generator →