#643E18#643E18

#643E18 is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.1% C 0.074 H 62.6°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#643E18
RGB	rgb(100, 62, 24)
HSL	hsl(30, 61%, 24%)
HSV	hsv(30, 76%, 39%)
CMYK	cmyk(0%, 38%, 76%, 60.8%)
CIE-LAB	lab(29.96, 12.89, 29.37)
CIE-LCH	lch(29.96, 32.08, 66.31°)
OKLab	oklab(40.1% 0.0342 0.066)
OKLCH	oklch(40.1% 0.074 62.6)
XYZ	xyz(7.1436, 6.2212, 1.6886)
Luminance	0.0622 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E18 #183E64

analogous

#641818 #643E18 #646418

triadic

#643E18 #18643E #3E1864

tetradic

#643E18 #186418 #183E64 #641864

square

#643E18 #186418 #183E64 #641864

split-complementary

#643E18 #186464 #181864

monochromatic

#190F06 #331F0C #643E18 #955D24 #C77B30

Accessibility & contrast

On white

9.36

#643E18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#643E18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E18

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E18	#FFFFFF	#000000	##FFFFFF
##643E18	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)

#4A4114

Deuteranopia (green-blind)

#534A18

Tritanopia (blue-blind)

#6E3536

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643e18;
/* rgb */ color: rgb(100, 62, 24);
/* oklch */ color: oklch(40.1% 0.074 62.6);

Tailwind

colors: {
  custom: {
    50: '#947357',
    500: '#643e18',
    950: '#000000',
  },
}

SCSS

$custom: #643e18;
$custom-light: #947357;
$custom-dark: #000000;

JSON

{
  "hex": "#643e18",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 24
  },
  "hsl": {
    "h": 30,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.40099,
    "c": 0.07433,
    "h": 62.6
  },
  "luminance": 0.06221
}

Semantic roles & 50–950 ramp

primary

#643E18

secondary

#3E6C9A

accent

#94E443

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643E18

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

Preview Lab → · Contrast checker → · Palette generator →