#663F64#663F64

#663F64 is a dark, moderate purple. Relative luminance 0.073; OKLCH L 42.7% C 0.077 H 328.6°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#663F64
RGB	rgb(102, 63, 100)
HSL	hsl(303, 24%, 32%)
HSV	hsv(303, 38%, 40%)
CMYK	cmyk(0%, 38.2%, 2%, 60%)
CIE-LAB	lab(32.48, 23.54, -14.79)
CIE-LCH	lch(32.48, 27.80, 327.85°)
OKLab	oklab(42.74% 0.0658 -0.0401)
OKLCH	oklch(42.74% 0.077 328.6)
XYZ	xyz(9.5571, 7.3003, 12.9598)
Luminance	0.0730 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F64 #3F6641

analogous

#553F66 #663F64 #663F51

triadic

#663F64 #64663F #3F6466

tetradic

#663F64 #66553F #3F6641 #3F5166

square

#663F64 #66553F #3F6641 #3F5166

split-complementary

#663F64 #51663F #3F6655

monochromatic

#1A101A #40283F #663F64 #8C5689 #AA75A7

Accessibility & contrast

On white

8.54

#663F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#663F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F64

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F64	#FFFFFF	#000000	##FFFFFF
##663F64	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4965

Deuteranopia (green-blind)

#474E63

Tritanopia (blue-blind)

#69424D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #663f64;
/* rgb */ color: rgb(102, 63, 100);
/* oklch */ color: oklch(42.7% 0.077 328.6);

Tailwind

colors: {
  custom: {
    50: '#927590',
    500: '#663f64',
    950: '#000000',
  },
}

SCSS

$custom: #663f64;
$custom-light: #927590;
$custom-dark: #000000;

JSON

{
  "hex": "#663f64",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 100
  },
  "hsl": {
    "h": 303.077,
    "s": 23.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.42736,
    "c": 0.07704,
    "h": 328.6
  },
  "luminance": 0.073
}

Semantic roles & 50–950 ramp

primary

#663F64

secondary

#6B956E

accent

#C06C68

background

#F9F7F8

surface

#F1EDF0

border

#CBC8CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #663F64

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

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