#643A1C#643A1C

#643A1C is a dark, moderate orange. Relative luminance 0.058; OKLCH L 39.3% C 0.074 H 54.2°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#643A1C
RGB	rgb(100, 58, 28)
HSL	hsl(25, 56%, 25%)
HSV	hsv(25, 72%, 39%)
CMYK	cmyk(0%, 42%, 72%, 60.8%)
CIE-LAB	lab(28.95, 15.60, 26.05)
CIE-LCH	lch(28.95, 30.37, 59.08°)
OKLab	oklab(39.33% 0.043 0.0597)
OKLCH	oklch(39.33% 0.074 54.2)
XYZ	xyz(6.9787, 5.8200, 1.8542)
Luminance	0.0582 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A1C #1C4664

analogous

#641C22 #643A1C #645E1C

triadic

#643A1C #1C643A #3A1C64

tetradic

#643A1C #22641C #1C4664 #5E1C64

square

#643A1C #22641C #1C4664 #5E1C64

split-complementary

#643A1C #1C645E #1C2264

monochromatic

#180E07 #341E0F #643A1C #945629 #C47137

Accessibility & contrast

On white

9.71

#643A1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#643A1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A1C

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A1C	#FFFFFF	#000000	##FFFFFF
##643A1C	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)

#463F19

Deuteranopia (green-blind)

#50481C

Tritanopia (blue-blind)

#6E3133

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #643a1c;
/* rgb */ color: rgb(100, 58, 28);
/* oklch */ color: oklch(39.3% 0.074 54.2);

Tailwind

colors: {
  custom: {
    50: '#947059',
    500: '#643a1c',
    950: '#000000',
  },
}

SCSS

$custom: #643a1c;
$custom-light: #947059;
$custom-dark: #000000;

JSON

{
  "hex": "#643a1c",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 28
  },
  "hsl": {
    "h": 25,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.39332,
    "c": 0.07358,
    "h": 54.2
  },
  "luminance": 0.05819
}

Semantic roles & 50–950 ramp

primary

#643A1C

secondary

#437599

accent

#A1E048

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643A1C

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

Preview Lab → · Contrast checker → · Palette generator →