#663D64#663D64

#663D64 is a dark, moderate purple. Relative luminance 0.071; OKLCH L 42.4% C 0.081 H 328.6°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#663D64
RGB	rgb(102, 61, 100)
HSL	hsl(303, 25%, 32%)
HSV	hsv(303, 40%, 40%)
CMYK	cmyk(0%, 40.2%, 2%, 60%)
CIE-LAB	lab(31.99, 24.75, -15.54)
CIE-LCH	lch(31.99, 29.22, 327.87°)
OKLab	oklab(42.37% 0.0692 -0.0422)
OKLCH	oklch(42.37% 0.081 328.6)
XYZ	xyz(9.4483, 7.0828, 12.9236)
Luminance	0.0708 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D64 #3D663F

analogous

#543D66 #663D64 #663D50

triadic

#663D64 #64663D #3D6466

tetradic

#663D64 #66543D #3D663F #3D5066

square

#663D64 #66543D #3D663F #3D5066

split-complementary

#663D64 #50663D #3D6654

monochromatic

#190F19 #40263E #663D64 #8C548A #AB72A8

Accessibility & contrast

On white

8.69

#663D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#663D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D64

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D64	#FFFFFF	#000000	##FFFFFF
##663D64	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4865

Deuteranopia (green-blind)

#454D63

Tritanopia (blue-blind)

#69404C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #663d64;
/* rgb */ color: rgb(102, 61, 100);
/* oklch */ color: oklch(42.4% 0.081 328.6);

Tailwind

colors: {
  custom: {
    50: '#927390',
    500: '#663d64',
    950: '#000000',
  },
}

SCSS

$custom: #663d64;
$custom-light: #927390;
$custom-dark: #000000;

JSON

{
  "hex": "#663d64",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 302.927,
    "s": 25.153,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4237,
    "c": 0.08104,
    "h": 328.6
  },
  "luminance": 0.07082
}

Semantic roles & 50–950 ramp

primary

#663D64

secondary

#69966B

accent

#C26B66

background

#F9F7F8

surface

#F1EDF0

border

#CBC8CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #663D64

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

Preview Lab → · Contrast checker → · Palette generator →