#643D2A#643D2A

#643D2A is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.2% C 0.063 H 46.4°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#643D2A
RGB	rgb(100, 61, 42)
HSL	hsl(20, 41%, 28%)
HSV	hsv(20, 58%, 39%)
CMYK	cmyk(0%, 39%, 58%, 60.8%)
CIE-LAB	lab(29.95, 14.90, 18.79)
CIE-LCH	lch(29.95, 23.98, 51.59°)
OKLab	oklab(40.17% 0.0433 0.0455)
OKLCH	oklch(40.17% 0.063 46.4)
XYZ	xyz(7.3427, 6.2146, 3.0029)
Luminance	0.0621 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D2A #2A5164

analogous

#642A34 #643D2A #645A2A

triadic

#643D2A #2A643D #3D2A64

tetradic

#643D2A #34642A #2A5164 #5A2A64

square

#643D2A #34642A #2A5164 #5A2A64

split-complementary

#643D2A #2A645A #2A3464

monochromatic

#160D09 #392318 #643D2A #8F573C #B67352

Accessibility & contrast

On white

9.36

#643D2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#643D2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D2A

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D2A	#FFFFFF	#000000	##FFFFFF
##643D2A	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474128

Deuteranopia (green-blind)

#514A2A

Tritanopia (blue-blind)

#6D3638

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643d2a;
/* rgb */ color: rgb(100, 61, 42);
/* oklch */ color: oklch(40.2% 0.063 46.4);

Tailwind

colors: {
  custom: {
    50: '#937264',
    500: '#643d2a',
    950: '#000000',
  },
}

SCSS

$custom: #643d2a;
$custom-light: #937264;
$custom-dark: #000000;

JSON

{
  "hex": "#643d2a",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 42
  },
  "hsl": {
    "h": 19.655,
    "s": 40.845,
    "l": 27.843
  },
  "oklch": {
    "l": 0.40167,
    "c": 0.06277,
    "h": 46.4
  },
  "luminance": 0.06214
}

Semantic roles & 50–950 ramp

primary

#643D2A

secondary

#538096

accent

#A9D157

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #643D2A

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

Preview Lab → · Contrast checker → · Palette generator →