#644C3D#644C3D

#644C3D is a dark, muted orange. Relative luminance 0.082; OKLCH L 43.8% C 0.040 H 53.4°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#644C3D
RGB	rgb(100, 76, 61)
HSL	hsl(23, 24%, 32%)
HSV	hsv(23, 39%, 39%)
CMYK	cmyk(0%, 24%, 39%, 60.8%)
CIE-LAB	lab(34.43, 7.82, 12.82)
CIE-LCH	lch(34.43, 15.02, 58.62°)
OKLab	oklab(43.77% 0.0241 0.0324)
OKLCH	oklch(43.77% 0.04 53.4)
XYZ	xyz(8.6825, 8.2156, 5.5424)
Luminance	0.0822 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644C3D #3D5564

analogous

#643D42 #644C3D #64603D

triadic

#644C3D #3D644C #4C3D64

tetradic

#644C3D #42643D #3D5564 #603D64

square

#644C3D #42643D #3D5564 #603D64

split-complementary

#644C3D #3D6460 #3D4264

monochromatic

#18120F #3E2F26 #644C3D #8A6954 #A98772

Accessibility & contrast

On white

7.95

#644C3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#644C3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644C3D

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644C3D	#FFFFFF	#000000	##FFFFFF
##644C3D	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E3C

Deuteranopia (green-blind)

#58533D

Tritanopia (blue-blind)

#6B4848

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #644c3d;
/* rgb */ color: rgb(100, 76, 61);
/* oklch */ color: oklch(43.8% 0.040 53.4);

Tailwind

colors: {
  custom: {
    50: '#917e72',
    500: '#644c3d',
    950: '#000000',
  },
}

SCSS

$custom: #644c3d;
$custom-light: #917e72;
$custom-dark: #000000;

JSON

{
  "hex": "#644c3d",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 61
  },
  "hsl": {
    "h": 23.077,
    "s": 24.224,
    "l": 31.569
  },
  "oklch": {
    "l": 0.43766,
    "c": 0.04035,
    "h": 53.4
  },
  "luminance": 0.08215
}

Semantic roles & 50–950 ramp

primary

#644C3D

secondary

#698394

accent

#9EC167

background

#F9F7F6

surface

#F1EEEC

border

#CBC9C7

text

#0D0908

muted

#7E7B7B

Preview Lab

Preview with #644C3D

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

Preview Lab → · Contrast checker → · Palette generator →