#643A28#643A28

#643A28 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.5% C 0.066 H 43.7°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#643A28
RGB	rgb(100, 58, 40)
HSL	hsl(18, 43%, 27%)
HSV	hsv(18, 60%, 39%)
CMYK	cmyk(0%, 42%, 60%, 60.8%)
CIE-LAB	lab(29.13, 16.56, 19.01)
CIE-LCH	lch(29.13, 25.21, 48.94°)
OKLab	oklab(39.53% 0.048 0.0458)
OKLCH	oklch(39.53% 0.066 43.7)
XYZ	xyz(7.1521, 5.8893, 2.7672)
Luminance	0.0589 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A28 #285264

analogous

#642834 #643A28 #645828

triadic

#643A28 #28643A #3A2864

tetradic

#643A28 #346428 #285264 #582864

square

#643A28 #346428 #285264 #582864

split-complementary

#643A28 #286458 #283464

monochromatic

#160D09 #382117 #643A28 #905339 #B86E4E

Accessibility & contrast

On white

9.64

#643A28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643A28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A28

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A28	#FFFFFF	#000000	##FFFFFF
##643A28	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453F26

Deuteranopia (green-blind)

#4F4828

Tritanopia (blue-blind)

#6D3336

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643a28;
/* rgb */ color: rgb(100, 58, 40);
/* oklch */ color: oklch(39.5% 0.066 43.7);

Tailwind

colors: {
  custom: {
    50: '#937062',
    500: '#643a28',
    950: '#000000',
  },
}

SCSS

$custom: #643a28;
$custom-light: #937062;
$custom-dark: #000000;

JSON

{
  "hex": "#643a28",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 40
  },
  "hsl": {
    "h": 18,
    "s": 42.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.39527,
    "c": 0.06634,
    "h": 43.7
  },
  "luminance": 0.05889
}

Semantic roles & 50–950 ramp

primary

#643A28

secondary

#518297

accent

#ADD355

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0705

muted

#7E7A79

Preview Lab

Preview with #643A28

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

Preview Lab → · Contrast checker → · Palette generator →