#644E4E#644E4E

#644E4E is a dark, muted red. Relative luminance 0.087; OKLCH L 44.7% C 0.030 H 18.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#644E4E
RGB	rgb(100, 78, 78)
HSL	hsl(0, 12%, 35%)
HSV	hsv(0, 22%, 39%)
CMYK	cmyk(0%, 22%, 22%, 60.8%)
CIE-LAB	lab(35.42, 9.23, 3.53)
CIE-LCH	lch(35.42, 9.88, 20.92°)
OKLab	oklab(44.68% 0.0282 0.0094)
OKLCH	oklch(44.68% 0.03 18.3)
XYZ	xyz(9.3551, 8.7085, 8.3944)
Luminance	0.0871 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E4E #4E6464

analogous

#644E59 #644E4E #64594E

triadic

#644E4E #4E644E #4E4E64

tetradic

#644E4E #59644E #4E6464 #594E64

square

#644E4E #59644E #4E6464 #594E64

split-complementary

#644E4E #4E6459 #4E5964

monochromatic

#1F1818 #423333 #644E4E #866969 #A38989

Accessibility & contrast

On white

7.66

#644E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#644E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E4E

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E4E	#FFFFFF	#000000	##FFFFFF
##644E4E	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52514E

Deuteranopia (green-blind)

#57554E

Tritanopia (blue-blind)

#694C4E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #644e4e;
/* rgb */ color: rgb(100, 78, 78);
/* oklch */ color: oklch(44.7% 0.030 18.3);

Tailwind

colors: {
  custom: {
    50: '#907f7f',
    500: '#644e4e',
    950: '#000000',
  },
}

SCSS

$custom: #644e4e;
$custom-light: #907f7f;
$custom-dark: #000000;

JSON

{
  "hex": "#644e4e",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 78
  },
  "hsl": {
    "h": 0,
    "s": 12.36,
    "l": 34.902
  },
  "oklch": {
    "l": 0.44676,
    "c": 0.02974,
    "h": 18.3
  },
  "luminance": 0.08708
}

Semantic roles & 50–950 ramp

primary

#644E4E

secondary

#7D9191

accent

#B5B573

background

#F8F7F7

surface

#F0EEEE

border

#CBC9C9

text

#0C0A0A

muted

#7D7C7C

Preview Lab

Preview with #644E4E

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

Preview Lab → · Contrast checker → · Palette generator →