#644C23#644C23

#644C23 is a dark, moderate orange. Relative luminance 0.080; OKLCH L 43.3% C 0.066 H 78.9°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#644C23
RGB	rgb(100, 76, 35)
HSL	hsl(38, 48%, 26%)
HSV	hsv(38, 65%, 39%)
CMYK	cmyk(0%, 24%, 65%, 60.8%)
CIE-LAB	lab(33.98, 4.98, 27.82)
CIE-LCH	lch(33.98, 28.26, 79.84°)
OKLab	oklab(43.27% 0.0127 0.0646)
OKLCH	oklch(43.27% 0.066 78.9)
XYZ	xyz(8.1438, 8.0001, 2.7050)
Luminance	0.0800 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644C23 #233B64

analogous

#642C23 #644C23 #5C6423

triadic

#644C23 #23644C #4C2364

tetradic

#644C23 #23642C #233B64 #64235C

square

#644C23 #23642C #233B64 #64235C

split-complementary

#644C23 #235C64 #2C2364

monochromatic

#171108 #372A13 #644C23 #916E33 #BE9144

Accessibility & contrast

On white

8.08

#644C23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#644C23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644C23

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644C23	#FFFFFF	#000000	##FFFFFF
##644C23	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C1F

Deuteranopia (green-blind)

#5B5224

Tritanopia (blue-blind)

#6D4543

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #644c23;
/* rgb */ color: rgb(100, 76, 35);
/* oklch */ color: oklch(43.3% 0.066 78.9);

Tailwind

colors: {
  custom: {
    50: '#937d5f',
    500: '#644c23',
    950: '#000000',
  },
}

SCSS

$custom: #644c23;
$custom-light: #937d5f;
$custom-dark: #000000;

JSON

{
  "hex": "#644c23",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 35
  },
  "hsl": {
    "h": 37.846,
    "s": 48.148,
    "l": 26.471
  },
  "oklch": {
    "l": 0.43274,
    "c": 0.06584,
    "h": 78.9
  },
  "luminance": 0.08
}

Semantic roles & 50–950 ramp

primary

#644C23

secondary

#4B6798

accent

#82D850

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0905

muted

#7E7B79

Preview Lab

Preview with #644C23

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

Preview Lab → · Contrast checker → · Palette generator →