#644E4D#644E4D

#644E4D is a dark, muted red. Relative luminance 0.087; OKLCH L 44.6% C 0.030 H 21.4°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#644E4D
RGB	rgb(100, 78, 77)
HSL	hsl(3, 13%, 35%)
HSV	hsv(3, 23%, 39%)
CMYK	cmyk(0%, 22%, 23%, 60.8%)
CIE-LAB	lab(35.39, 9.06, 4.12)
CIE-LCH	lch(35.39, 9.95, 24.45°)
OKLab	oklab(44.65% 0.0278 0.0109)
OKLCH	oklch(44.65% 0.03 21.4)
XYZ	xyz(9.3195, 8.6943, 8.2070)
Luminance	0.0869 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E4D #4D6364

analogous

#644D58 #644E4D #645A4D

triadic

#644E4D #4D644E #4E4D64

tetradic

#644E4D #58644D #4D6364 #5A4D64

square

#644E4D #58644D #4D6364 #5A4D64

split-complementary

#644E4D #4D645A #4D5864

monochromatic

#1F1818 #413332 #644E4D #876968 #A38988

Accessibility & contrast

On white

7.67

#644E4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#644E4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E4D

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E4D	#FFFFFF	#000000	##FFFFFF
##644E4D	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)

#52514D

Deuteranopia (green-blind)

#57554D

Tritanopia (blue-blind)

#694C4E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #644e4d;
/* rgb */ color: rgb(100, 78, 77);
/* oklch */ color: oklch(44.6% 0.030 21.4);

Tailwind

colors: {
  custom: {
    50: '#907f7e',
    500: '#644e4d',
    950: '#000000',
  },
}

SCSS

$custom: #644e4d;
$custom-light: #907f7e;
$custom-dark: #000000;

JSON

{
  "hex": "#644e4d",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 77
  },
  "hsl": {
    "h": 2.609,
    "s": 12.994,
    "l": 34.706
  },
  "oklch": {
    "l": 0.44645,
    "c": 0.02983,
    "h": 21.4
  },
  "luminance": 0.08694
}

Semantic roles & 50–950 ramp

primary

#644E4D

secondary

#7B9091

accent

#B3B672

background

#F8F7F7

surface

#F0EEEE

border

#CBC9C9

text

#0C0A0A

muted

#7D7C7C

Preview Lab

Preview with #644E4D

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

Preview Lab → · Contrast checker → · Palette generator →