#643D21#643D21

#643D21 is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.0% C 0.069 H 55.0°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#643D21
RGB	rgb(100, 61, 33)
HSL	hsl(25, 50%, 26%)
HSV	hsv(25, 67%, 39%)
CMYK	cmyk(0%, 39%, 67%, 60.8%)
CIE-LAB	lab(29.81, 14.11, 24.11)
CIE-LCH	lch(29.81, 27.94, 59.65°)
OKLab	oklab(40.01% 0.0394 0.0563)
OKLCH	oklch(40.01% 0.069 55)
XYZ	xyz(7.1993, 6.1573, 2.2479)
Luminance	0.0616 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D21 #214864

analogous

#642126 #643D21 #645E21

triadic

#643D21 #21643D #3D2164

tetradic

#643D21 #266421 #214864 #5E2164

square

#643D21 #266421 #214864 #5E2164

split-complementary

#643D21 #21645E #212664

monochromatic

#170E08 #362112 #643D21 #925930 #C07540

Accessibility & contrast

On white

9.41

#643D21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#643D21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D21

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D21	#FFFFFF	#000000	##FFFFFF
##643D21	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48411E

Deuteranopia (green-blind)

#524A21

Tritanopia (blue-blind)

#6D3536

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643d21;
/* rgb */ color: rgb(100, 61, 33);
/* oklch */ color: oklch(40.0% 0.069 55.0);

Tailwind

colors: {
  custom: {
    50: '#93725d',
    500: '#643d21',
    950: '#000000',
  },
}

SCSS

$custom: #643d21;
$custom-light: #93725d;
$custom-dark: #000000;

JSON

{
  "hex": "#643d21",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 33
  },
  "hsl": {
    "h": 25.075,
    "s": 50.376,
    "l": 26.078
  },
  "oklch": {
    "l": 0.40012,
    "c": 0.06872,
    "h": 55
  },
  "luminance": 0.06157
}

Semantic roles & 50–950 ramp

primary

#643D21

secondary

#497798

accent

#9FDA4E

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #643D21

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

Preview Lab → · Contrast checker → · Palette generator →