#644E50#644E50

#644E50 is a dark, muted red. Relative luminance 0.087; OKLCH L 44.7% C 0.030 H 12.2°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#644E50
RGB	rgb(100, 78, 80)
HSL	hsl(355, 12%, 35%)
HSV	hsv(355, 22%, 39%)
CMYK	cmyk(0%, 22%, 20%, 60.8%)
CIE-LAB	lab(35.47, 9.58, 2.35)
CIE-LCH	lch(35.47, 9.86, 13.78°)
OKLab	oklab(44.74% 0.0291 0.0063)
OKLCH	oklch(44.74% 0.03 12.2)
XYZ	xyz(9.4279, 8.7377, 8.7778)
Luminance	0.0874 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E50 #4E6462

analogous

#644E5B #644E50 #64574E

triadic

#644E50 #50644E #4E5064

tetradic

#644E50 #5B644E #4E6462 #574E64

square

#644E50 #5B644E #4E6462 #574E64

split-complementary

#644E50 #4E6457 #4E5B64

monochromatic

#1F1819 #423334 #644E50 #86696C #A3898C

Accessibility & contrast

On white

7.64

#644E50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#644E50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E50

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E50	#FFFFFF	#000000	##FFFFFF
##644E50	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#515150

Deuteranopia (green-blind)

#565550

Tritanopia (blue-blind)

#684C4F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #644e50;
/* rgb */ color: rgb(100, 78, 80);
/* oklch */ color: oklch(44.7% 0.030 12.2);

Tailwind

colors: {
  custom: {
    50: '#907f81',
    500: '#644e50',
    950: '#000000',
  },
}

SCSS

$custom: #644e50;
$custom-light: #907f81;
$custom-dark: #000000;

JSON

{
  "hex": "#644e50",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 80
  },
  "hsl": {
    "h": 354.545,
    "s": 12.36,
    "l": 34.902
  },
  "oklch": {
    "l": 0.44739,
    "c": 0.02978,
    "h": 12.2
  },
  "luminance": 0.08737
}

Semantic roles & 50–950 ramp

primary

#644E50

secondary

#7D918F

accent

#B5AF73

background

#F8F7F7

surface

#F0EEEE

border

#CBC9C9

text

#0C0A0A

muted

#7D7C7C

Preview Lab

Preview with #644E50

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

Preview Lab → · Contrast checker → · Palette generator →