#644A6C#644A6C

#644A6C is a dark, moderate purple. Relative luminance 0.087; OKLCH L 45.0% C 0.063 H 318.1°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#644A6C
RGB	rgb(100, 74, 108)
HSL	hsl(286, 19%, 36%)
HSV	hsv(286, 31%, 42%)
CMYK	cmyk(7.4%, 31.5%, 0%, 57.6%)
CIE-LAB	lab(35.38, 17.77, -15.42)
CIE-LCH	lch(35.38, 23.52, 319.04°)
OKLab	oklab(44.99% 0.0468 -0.042)
OKLCH	oklch(44.99% 0.063 318.1)
XYZ	xyz(10.4107, 8.6898, 15.3133)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644A6C #526C4A

analogous

#534A6C #644A6C #6C4A63

triadic

#644A6C #6C644A #4A6C64

tetradic

#644A6C #6C534A #526C4A #4A636C

square

#644A6C #6C534A #526C4A #4A636C

split-complementary

#644A6C #636C4A #4A6C53

monochromatic

#211823 #423148 #644A6C #866390 #A285AB

Accessibility & contrast

On white

7.67

#644A6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#644A6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644A6C

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644A6C	#FFFFFF	#000000	##FFFFFF
##644A6C	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46516D

Deuteranopia (green-blind)

#4C546B

Tritanopia (blue-blind)

#644E56

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #644a6c;
/* rgb */ color: rgb(100, 74, 108);
/* oklch */ color: oklch(45.0% 0.063 318.1);

Tailwind

colors: {
  custom: {
    50: '#907d96',
    500: '#644a6c',
    950: '#000000',
  },
}

SCSS

$custom: #644a6c;
$custom-light: #907d96;
$custom-dark: #000000;

JSON

{
  "hex": "#644a6c",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 108
  },
  "hsl": {
    "h": 285.882,
    "s": 18.681,
    "l": 35.686
  },
  "oklch": {
    "l": 0.44994,
    "c": 0.06292,
    "h": 318.1
  },
  "luminance": 0.0869
}

Semantic roles & 50–950 ramp

primary

#644A6C

secondary

#819879

accent

#BB6C7F

background

#F8F7F9

surface

#F0EEF2

border

#CBC9CC

text

#0C090D

muted

#7D7B7E

Preview Lab

Preview with #644A6C

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

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