#583F18#583F18

#583F18 is a dark, moderate orange. Relative luminance 0.057; OKLCH L 38.7% C 0.064 H 75.7°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#583F18
RGB	rgb(88, 63, 24)
HSL	hsl(37, 57%, 22%)
HSV	hsv(37, 73%, 35%)
CMYK	cmyk(0%, 28.4%, 72.7%, 65.5%)
CIE-LAB	lab(28.63, 6.34, 27.47)
CIE-LCH	lch(28.63, 28.19, 77.00°)
OKLab	oklab(38.71% 0.0159 0.0625)
OKLCH	oklch(38.71% 0.064 75.7)
XYZ	xyz(5.9673, 5.6961, 1.6492)
Luminance	0.0570 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#583F18 #183158

analogous

#581F18 #583F18 #515818

triadic

#583F18 #18583F #3F1858

tetradic

#583F18 #18581F #183158 #581851

square

#583F18 #18581F #183158 #581851

split-complementary

#583F18 #185158 #1F1858

monochromatic

#181107 #281D0B #583F18 #886125 #B88432

Accessibility & contrast

On white

9.82

#583F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#583F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #583F18

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##583F18	#FFFFFF	#000000	##FFFFFF
##583F18	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484014

Deuteranopia (green-blind)

#4E4619

Tritanopia (blue-blind)

#603837

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #583f18;
/* rgb */ color: rgb(88, 63, 24);
/* oklch */ color: oklch(38.7% 0.064 75.7);

Tailwind

colors: {
  custom: {
    50: '#8a7357',
    500: '#583f18',
    950: '#000000',
  },
}

SCSS

$custom: #583f18;
$custom-light: #8a7357;
$custom-dark: #000000;

JSON

{
  "hex": "#583f18",
  "rgb": {
    "r": 88,
    "g": 63,
    "b": 24
  },
  "hsl": {
    "h": 36.563,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.3871,
    "c": 0.06445,
    "h": 75.7
  },
  "luminance": 0.05696
}

Semantic roles & 50–950 ramp

primary

#583F18

secondary

#3D5D8F

accent

#83E047

background

#F8F7F5

surface

#F0EDE9

border

#CBC8C5

text

#0C0803

muted

#7D7B78

Preview Lab

Preview with #583F18

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

Preview Lab → · Contrast checker → · Palette generator →