#643D2F#643D2F

#643D2F is a dark, muted orange. Relative luminance 0.063; OKLCH L 40.3% C 0.060 H 40.5°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#643D2F
RGB	rgb(100, 61, 47)
HSL	hsl(16, 36%, 29%)
HSV	hsv(16, 53%, 39%)
CMYK	cmyk(0%, 39%, 53%, 60.8%)
CIE-LAB	lab(30.04, 15.41, 15.77)
CIE-LCH	lch(30.04, 22.05, 45.65°)
OKLab	oklab(40.27% 0.0455 0.0389)
OKLCH	oklch(40.27% 0.06 40.5)
XYZ	xyz(7.4378, 6.2527, 3.5039)
Luminance	0.0625 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D2F #2F5664

analogous

#642F3C #643D2F #64582F

triadic

#643D2F #2F643D #3D2F64

tetradic

#643D2F #3C642F #2F5664 #582F64

square

#643D2F #3C642F #2F5664 #582F64

split-complementary

#643D2F #2F6458 #2F3C64

monochromatic

#150D0A #3A241B #643D2F #8E5643 #B2725B

Accessibility & contrast

On white

9.33

#643D2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643D2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D2F

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D2F	#FFFFFF	#000000	##FFFFFF
##643D2F	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47422E

Deuteranopia (green-blind)

#504A2F

Tritanopia (blue-blind)

#6C3739

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643d2f;
/* rgb */ color: rgb(100, 61, 47);
/* oklch */ color: oklch(40.3% 0.060 40.5);

Tailwind

colors: {
  custom: {
    50: '#927367',
    500: '#643d2f',
    950: '#000000',
  },
}

SCSS

$custom: #643d2f;
$custom-light: #927367;
$custom-dark: #000000;

JSON

{
  "hex": "#643d2f",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 47
  },
  "hsl": {
    "h": 15.849,
    "s": 36.054,
    "l": 28.824
  },
  "oklch": {
    "l": 0.4027,
    "c": 0.05985,
    "h": 40.5
  },
  "luminance": 0.06252
}

Semantic roles & 50–950 ramp

primary

#643D2F

secondary

#598696

accent

#AECC5C

background

#F9F6F6

surface

#F1ECEB

border

#CBC7C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #643D2F

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

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