#573B18#573B18

#573B18 is a dark, moderate orange. Relative luminance 0.052; OKLCH L 37.7% C 0.063 H 69.7°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#573B18
RGB	rgb(87, 59, 24)
HSL	hsl(33, 57%, 22%)
HSV	hsv(33, 72%, 34%)
CMYK	cmyk(0%, 32.2%, 72.4%, 65.9%)
CIE-LAB	lab(27.35, 8.38, 26.03)
CIE-LCH	lch(27.35, 27.35, 72.16°)
OKLab	oklab(37.68% 0.022 0.0594)
OKLCH	oklch(37.68% 0.063 69.7)
XYZ	xyz(5.6597, 5.2206, 1.5736)
Luminance	0.0522 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#573B18 #183457

analogous

#571B18 #573B18 #545718

triadic

#573B18 #18573B #3B1857

tetradic

#573B18 #18571B #183457 #571854

square

#573B18 #18571B #183457 #571854

split-complementary

#573B18 #185457 #1B1857

monochromatic

#181007 #271A0B #573B18 #875C25 #B77C32

Accessibility & contrast

On white

10.27

#573B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#573B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #573B18

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##573B18	#FFFFFF	#000000	##FFFFFF
##573B18	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D14

Deuteranopia (green-blind)

#4B4319

Tritanopia (blue-blind)

#5F3433

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #573b18;
/* rgb */ color: rgb(87, 59, 24);
/* oklch */ color: oklch(37.7% 0.063 69.7);

Tailwind

colors: {
  custom: {
    50: '#897056',
    500: '#573b18',
    950: '#000000',
  },
}

SCSS

$custom: #573b18;
$custom-light: #897056;
$custom-dark: #000000;

JSON

{
  "hex": "#573b18",
  "rgb": {
    "r": 87,
    "g": 59,
    "b": 24
  },
  "hsl": {
    "h": 33.333,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.37683,
    "c": 0.06336,
    "h": 69.7
  },
  "luminance": 0.0522
}

Semantic roles & 50–950 ramp

primary

#573B18

secondary

#3D618E

accent

#8BE048

background

#F8F6F5

surface

#F0ECE9

border

#CBC7C5

text

#0C0703

muted

#7D7A78

Preview Lab

Preview with #573B18

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

Preview Lab → · Contrast checker → · Palette generator →