#644038#644038

#644038 is a dark, muted red. Relative luminance 0.067; OKLCH L 41.1% C 0.053 H 33.1°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#644038
RGB	rgb(100, 64, 56)
HSL	hsl(11, 28%, 31%)
HSV	hsv(11, 44%, 39%)
CMYK	cmyk(0%, 36%, 44%, 60.8%)
CIE-LAB	lab(31.03, 14.62, 11.34)
CIE-LCH	lch(31.03, 18.50, 37.81°)
OKLab	oklab(41.09% 0.044 0.0287)
OKLCH	oklch(41.09% 0.053 33.1)
XYZ	xyz(7.8031, 6.6622, 4.6156)
Luminance	0.0666 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644038 #385C64

analogous

#643846 #644038 #645638

triadic

#644038 #386440 #403864

tetradic

#644038 #466438 #385C64 #563864

square

#644038 #466438 #385C64 #563864

split-complementary

#644038 #386456 #384664

monochromatic

#160E0C #3D2722 #644038 #8B594E #AC766B

Accessibility & contrast

On white

9.00

#644038 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#644038 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644038

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644038	#FFFFFF	#000000	##FFFFFF
##644038	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484537

Deuteranopia (green-blind)

#514C38

Tritanopia (blue-blind)

#6C3B3E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #644038;
/* rgb */ color: rgb(100, 64, 56);
/* oklch */ color: oklch(41.1% 0.053 33.1);

Tailwind

colors: {
  custom: {
    50: '#92756e',
    500: '#644038',
    950: '#000000',
  },
}

SCSS

$custom: #644038;
$custom-light: #92756e;
$custom-dark: #000000;

JSON

{
  "hex": "#644038",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 56
  },
  "hsl": {
    "h": 10.909,
    "s": 28.205,
    "l": 30.588
  },
  "oklch": {
    "l": 0.41091,
    "c": 0.05257,
    "h": 33.1
  },
  "luminance": 0.06662
}

Semantic roles & 50–950 ramp

primary

#644038

secondary

#638B94

accent

#B3C563

background

#F9F7F6

surface

#F1EDEB

border

#CBC8C6

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #644038

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

Preview Lab → · Contrast checker → · Palette generator →