#644B33#644B33

#644B33 is a dark, muted orange. Relative luminance 0.080; OKLCH L 43.3% C 0.050 H 64.7°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#644B33
RGB	rgb(100, 75, 51)
HSL	hsl(29, 32%, 30%)
HSV	hsv(29, 49%, 39%)
CMYK	cmyk(0%, 25%, 49%, 60.8%)
CIE-LAB	lab(33.94, 7.17, 18.37)
CIE-LCH	lch(33.94, 19.72, 68.67°)
OKLab	oklab(43.32% 0.0213 0.0451)
OKLCH	oklch(43.32% 0.05 64.7)
XYZ	xyz(8.3695, 7.9810, 4.2310)
Luminance	0.0798 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644B33 #334C64

analogous

#643334 #644B33 #646433

triadic

#644B33 #33644B #4B3364

tetradic

#644B33 #346433 #334C64 #643364

square

#644B33 #346433 #334C64 #643364

split-complementary

#644B33 #336464 #333464

monochromatic

#140F0A #3B2D1E #644B33 #8D6948 #AF8862

Accessibility & contrast

On white

8.09

#644B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#644B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B33

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644B33	#FFFFFF	#000000	##FFFFFF
##644B33	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534C31

Deuteranopia (green-blind)

#595233

Tritanopia (blue-blind)

#6C4645

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #644b33;
/* rgb */ color: rgb(100, 75, 51);
/* oklch */ color: oklch(43.3% 0.050 64.7);

Tailwind

colors: {
  custom: {
    50: '#927d6b',
    500: '#644b33',
    950: '#000000',
  },
}

SCSS

$custom: #644b33;
$custom-light: #927d6b;
$custom-dark: #000000;

JSON

{
  "hex": "#644b33",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 51
  },
  "hsl": {
    "h": 29.388,
    "s": 32.45,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43322,
    "c": 0.04986,
    "h": 64.7
  },
  "luminance": 0.0798
}

Semantic roles & 50–950 ramp

primary

#644B33

secondary

#5E7A95

accent

#95C95F

background

#F9F7F6

surface

#F1EEEB

border

#CBC9C6

text

#0D0906

muted

#7E7B7A

Preview Lab

Preview with #644B33

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

Preview Lab → · Contrast checker → · Palette generator →