#663B60#663B60

#663B60 is a dark, moderate purple. Relative luminance 0.068; OKLCH L 41.8% C 0.081 H 332.1°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#663B60
RGB	rgb(102, 59, 96)
HSL	hsl(308, 27%, 32%)
HSV	hsv(308, 42%, 40%)
CMYK	cmyk(0%, 42.2%, 5.9%, 60%)
CIE-LAB	lab(31.34, 25.14, -13.98)
CIE-LCH	lch(31.34, 28.76, 330.91°)
OKLab	oklab(41.82% 0.0715 -0.0378)
OKLCH	oklch(41.82% 0.081 332.1)
XYZ	xyz(9.1547, 6.7977, 11.8939)
Luminance	0.0680 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B60 #3B6641

analogous

#573B66 #663B60 #663B4B

triadic

#663B60 #60663B #3B6066

tetradic

#663B60 #66573B #3B6641 #3B4B66

square

#663B60 #66573B #3B6641 #3B4B66

split-complementary

#663B60 #4B663B #3B6657

monochromatic

#180E17 #3F253C #663B60 #8D5184 #AC6FA4

Accessibility & contrast

On white

8.90

#663B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#663B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B60

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B60	#FFFFFF	#000000	##FFFFFF
##663B60	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4661

Deuteranopia (green-blind)

#454C5F

Tritanopia (blue-blind)

#693E49

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #663b60;
/* rgb */ color: rgb(102, 59, 96);
/* oklch */ color: oklch(41.8% 0.081 332.1);

Tailwind

colors: {
  custom: {
    50: '#92728d',
    500: '#663b60',
    950: '#000000',
  },
}

SCSS

$custom: #663b60;
$custom-light: #92728d;
$custom-dark: #000000;

JSON

{
  "hex": "#663b60",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 96
  },
  "hsl": {
    "h": 308.372,
    "s": 26.708,
    "l": 31.569
  },
  "oklch": {
    "l": 0.41821,
    "c": 0.08084,
    "h": 332.1
  },
  "luminance": 0.06797
}

Semantic roles & 50–950 ramp

primary

#663B60

secondary

#67966D

accent

#C37265

background

#F9F6F8

surface

#F1ECF0

border

#CBC7CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #663B60

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

Preview Lab → · Contrast checker → · Palette generator →