#663E86#663E86

#663E86 is a dark, vivid violet. Relative luminance 0.080; OKLCH L 44.4% C 0.120 H 307.9°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#663E86
RGB	rgb(102, 62, 134)
HSL	hsl(273, 37%, 38%)
HSV	hsv(273, 54%, 53%)
CMYK	cmyk(23.9%, 53.7%, 0%, 47.5%)
CIE-LAB	lab(33.97, 31.96, -33.80)
CIE-LCH	lch(33.97, 46.52, 313.40°)
OKLab	oklab(44.41% 0.0738 -0.0948)
OKLCH	oklch(44.41% 0.12 307.9)
XYZ	xyz(11.5043, 7.9914, 23.4861)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663E86 #5E863E

analogous

#423E86 #663E86 #863E82

triadic

#663E86 #86663E #3E8666

tetradic

#663E86 #86423E #5E863E #3E8286

square

#663E86 #86423E #5E863E #3E8286

split-complementary

#663E86 #82863E #3E8642

monochromatic

#261732 #462B5C #663E86 #8652AF #A37CC2

Accessibility & contrast

On white

8.08

#663E86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#663E86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663E86

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663E86	#FFFFFF	#000000	##FFFFFF
##663E86	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294E88

Deuteranopia (green-blind)

#355084

Tritanopia (blue-blind)

#614B5C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #663e86;
/* rgb */ color: rgb(102, 62, 134);
/* oklch */ color: oklch(44.4% 0.120 307.9);

Tailwind

colors: {
  custom: {
    50: '#9475a9',
    500: '#663e86',
    950: '#000000',
  },
}

SCSS

$custom: #663e86;
$custom-light: #9475a9;
$custom-dark: #000000;

JSON

{
  "hex": "#663e86",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 134
  },
  "hsl": {
    "h": 273.333,
    "s": 36.735,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44407,
    "c": 0.12009,
    "h": 307.9
  },
  "luminance": 0.07991
}

Semantic roles & 50–950 ramp

primary

#663E86

secondary

#8DAC73

accent

#CD5B8E

background

#F9F7FA

surface

#F2EDF4

border

#CCC8CE

text

#0D0810

muted

#7E7B7F

Preview Lab

Preview with #663E86

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

Preview Lab → · Contrast checker → · Palette generator →