#66539B#66539B

#66539B is a mid, moderate violet. Relative luminance 0.114; OKLCH L 49.5% C 0.113 H 294.0°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#66539B
RGB	rgb(102, 83, 155)
HSL	hsl(256, 30%, 47%)
HSV	hsv(256, 46%, 61%)
CMYK	cmyk(34.2%, 46.5%, 0%, 39.2%)
CIE-LAB	lab(40.21, 24.81, -36.66)
CIE-LCH	lch(40.21, 44.27, 304.08°)
OKLab	oklab(49.46% 0.046 -0.1032)
OKLCH	oklch(49.46% 0.113 294)
XYZ	xyz(14.4876, 11.3776, 32.4368)
Luminance	0.1138 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66539B #889B53

analogous

#53649B #66539B #8A539B

triadic

#66539B #9B6653 #539B66

tetradic

#66539B #9B5364 #889B53 #539B8A

square

#66539B #9B5364 #889B53 #539B8A

split-complementary

#66539B #9B8A53 #649B53

monochromatic

#32284B #4C3E73 #66539B #8776B5 #AA9ECB

Accessibility & contrast

On white

6.41

#66539B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#66539B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66539B

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66539B	#FFFFFF	#000000	##FFFFFF
##66539B	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B609E

Deuteranopia (green-blind)

#3E5E99

Tritanopia (blue-blind)

#5A616F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #66539b;
/* rgb */ color: rgb(102, 83, 155);
/* oklch */ color: oklch(49.5% 0.113 294.0);

Tailwind

colors: {
  custom: {
    50: '#9483b9',
    500: '#66539b',
    950: '#000000',
  },
}

SCSS

$custom: #66539b;
$custom-light: #9483b9;
$custom-dark: #000000;

JSON

{
  "hex": "#66539b",
  "rgb": {
    "r": 102,
    "g": 83,
    "b": 155
  },
  "hsl": {
    "h": 255.833,
    "s": 30.252,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49456,
    "c": 0.11295,
    "h": 294
  },
  "luminance": 0.11378
}

Semantic roles & 50–950 ramp

primary

#66539B

secondary

#AEB892

accent

#C661AC

background

#F9F8FB

surface

#F2EFF6

border

#CCCAD0

text

#0D0A11

muted

#7E7C80

Preview Lab

Preview with #66539B

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

Preview Lab → · Contrast checker → · Palette generator →