#644B23#644B23

#644B23 is a dark, moderate orange. Relative luminance 0.079; OKLCH L 43.0% C 0.066 H 77.2°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#644B23
RGB	rgb(100, 75, 35)
HSL	hsl(37, 48%, 26%)
HSV	hsv(37, 65%, 39%)
CMYK	cmyk(0%, 25%, 65%, 60.8%)
CIE-LAB	lab(33.70, 5.60, 27.49)
CIE-LCH	lch(33.70, 28.05, 78.49°)
OKLab	oklab(43.05% 0.0145 0.0639)
OKLCH	oklch(43.05% 0.066 77.2)
XYZ	xyz(8.0754, 7.8634, 2.6822)
Luminance	0.0786 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644B23 #233C64

analogous

#642B23 #644B23 #5D6423

triadic

#644B23 #23644B #4B2364

tetradic

#644B23 #23642B #233C64 #64235D

square

#644B23 #23642B #233C64 #64235D

split-complementary

#644B23 #235D64 #2B2364

monochromatic

#171108 #372913 #644B23 #916D33 #BE8F44

Accessibility & contrast

On white

8.16

#644B23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#644B23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B23

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644B23	#FFFFFF	#000000	##FFFFFF
##644B23	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1F

Deuteranopia (green-blind)

#5B5224

Tritanopia (blue-blind)

#6D4442

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #644b23;
/* rgb */ color: rgb(100, 75, 35);
/* oklch */ color: oklch(43.0% 0.066 77.2);

Tailwind

colors: {
  custom: {
    50: '#937d5f',
    500: '#644b23',
    950: '#000000',
  },
}

SCSS

$custom: #644b23;
$custom-light: #937d5f;
$custom-dark: #000000;

JSON

{
  "hex": "#644b23",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 35
  },
  "hsl": {
    "h": 36.923,
    "s": 48.148,
    "l": 26.471
  },
  "oklch": {
    "l": 0.43049,
    "c": 0.06552,
    "h": 77.2
  },
  "luminance": 0.07863
}

Semantic roles & 50–950 ramp

primary

#644B23

secondary

#4B6998

accent

#84D850

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0904

muted

#7E7B79

Preview Lab

Preview with #644B23

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

Preview Lab → · Contrast checker → · Palette generator →