#643A1A#643A1A

#643A1A is a dark, moderate orange. Relative luminance 0.058; OKLCH L 39.3% C 0.075 H 55.6°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#643A1A
RGB	rgb(100, 58, 26)
HSL	hsl(26, 59%, 25%)
HSV	hsv(26, 74%, 39%)
CMYK	cmyk(0%, 42%, 74%, 60.8%)
CIE-LAB	lab(28.93, 15.48, 27.16)
CIE-LCH	lch(28.93, 31.26, 60.33°)
OKLab	oklab(39.31% 0.0423 0.0617)
OKLCH	oklch(39.31% 0.075 55.6)
XYZ	xyz(6.9556, 5.8107, 1.7324)
Luminance	0.0581 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A1A #1A4464

analogous

#641A1F #643A1A #645F1A

triadic

#643A1A #1A643A #3A1A64

tetradic

#643A1A #1F641A #1A4464 #5F1A64

square

#643A1A #1F641A #1A4464 #5F1A64

split-complementary

#643A1A #1A645F #1A1F64

monochromatic

#180E06 #331E0D #643A1A #955627 #C57233

Accessibility & contrast

On white

9.71

#643A1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#643A1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A1A

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A1A	#FFFFFF	#000000	##FFFFFF
##643A1A	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463E17

Deuteranopia (green-blind)

#50481A

Tritanopia (blue-blind)

#6E3133

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #643a1a;
/* rgb */ color: rgb(100, 58, 26);
/* oklch */ color: oklch(39.3% 0.075 55.6);

Tailwind

colors: {
  custom: {
    50: '#947058',
    500: '#643a1a',
    950: '#000000',
  },
}

SCSS

$custom: #643a1a;
$custom-light: #947058;
$custom-dark: #000000;

JSON

{
  "hex": "#643a1a",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 26
  },
  "hsl": {
    "h": 25.946,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.39306,
    "c": 0.07478,
    "h": 55.6
  },
  "luminance": 0.0581
}

Semantic roles & 50–950 ramp

primary

#643A1A

secondary

#40739A

accent

#9EE246

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643A1A

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

Preview Lab → · Contrast checker → · Palette generator →