#663C95#663C95

#663C95 is a mid, vivid violet. Relative luminance 0.082; OKLCH L 45.1% C 0.142 H 302.9°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#663C95
RGB	rgb(102, 60, 149)
HSL	hsl(268, 43%, 41%)
HSV	hsv(268, 60%, 58%)
CMYK	cmyk(31.5%, 59.7%, 0%, 41.6%)
CIE-LAB	lab(34.45, 36.94, -42.22)
CIE-LCH	lch(34.45, 56.10, 311.18°)
OKLab	oklab(45.06% 0.0772 -0.1194)
OKLCH	oklch(45.06% 0.142 302.9)
XYZ	xyz(12.5189, 8.2264, 29.3563)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C95 #6B953C

analogous

#3C3E95 #663C95 #923C95

triadic

#663C95 #95663C #3C9566

tetradic

#663C95 #953C3E #6B953C #3C9592

square

#663C95 #953C3E #6B953C #3C9592

split-complementary

#663C95 #95923C #3E953C

monochromatic

#2A193E #482A69 #663C95 #8454BA #A480CC

Accessibility & contrast

On white

7.94

#663C95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#663C95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C95

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C95	#FFFFFF	#000000	##FFFFFF
##663C95	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#125098

Deuteranopia (green-blind)

#265193

Tritanopia (blue-blind)

#5D4E62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #663c95;
/* rgb */ color: rgb(102, 60, 149);
/* oklch */ color: oklch(45.1% 0.142 302.9);

Tailwind

colors: {
  custom: {
    50: '#9574b5',
    500: '#663c95',
    950: '#000000',
  },
}

SCSS

$custom: #663c95;
$custom-light: #9574b5;
$custom-dark: #000000;

JSON

{
  "hex": "#663c95",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 149
  },
  "hsl": {
    "h": 268.315,
    "s": 42.584,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45063,
    "c": 0.14218,
    "h": 302.9
  },
  "luminance": 0.08226
}

Semantic roles & 50–950 ramp

primary

#663C95

secondary

#98B677

accent

#D25597

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #663C95

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

Preview Lab → · Contrast checker → · Palette generator →