#644F33#644F33

#644F33 is a dark, muted orange. Relative luminance 0.085; OKLCH L 44.2% C 0.050 H 73.9°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#644F33
RGB	rgb(100, 79, 51)
HSL	hsl(34, 32%, 30%)
HSV	hsv(34, 49%, 39%)
CMYK	cmyk(0%, 21%, 49%, 60.8%)
CIE-LAB	lab(35.08, 4.71, 19.84)
CIE-LCH	lch(35.08, 20.39, 76.66°)
OKLab	oklab(44.22% 0.014 0.0485)
OKLCH	oklch(44.22% 0.05 73.9)
XYZ	xyz(8.6494, 8.5408, 4.3243)
Luminance	0.0854 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644F33 #334864

analogous

#643733 #644F33 #616433

triadic

#644F33 #33644F #4F3364

tetradic

#644F33 #336437 #334864 #643361

square

#644F33 #336437 #334864 #643361

split-complementary

#644F33 #336164 #373364

monochromatic

#14100A #3B2F1E #644F33 #8D6F48 #AF8E62

Accessibility & contrast

On white

7.75

#644F33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#644F33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644F33

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644F33	#FFFFFF	#000000	##FFFFFF
##644F33	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575031

Deuteranopia (green-blind)

#5C5534

Tritanopia (blue-blind)

#6B4A48

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #644f33;
/* rgb */ color: rgb(100, 79, 51);
/* oklch */ color: oklch(44.2% 0.050 73.9);

Tailwind

colors: {
  custom: {
    50: '#91806b',
    500: '#644f33',
    950: '#000000',
  },
}

SCSS

$custom: #644f33;
$custom-light: #91806b;
$custom-dark: #000000;

JSON

{
  "hex": "#644f33",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 51
  },
  "hsl": {
    "h": 34.286,
    "s": 32.45,
    "l": 29.608
  },
  "oklch": {
    "l": 0.44215,
    "c": 0.05045,
    "h": 73.9
  },
  "luminance": 0.0854
}

Semantic roles & 50–950 ramp

primary

#644F33

secondary

#5E7595

accent

#8CC95F

background

#F9F7F6

surface

#F1EEEB

border

#CBC9C6

text

#0D0A06

muted

#7E7C7A

Preview Lab

Preview with #644F33

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

Preview Lab → · Contrast checker → · Palette generator →