#643F13#643F13

#643F13 is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.077 H 66.5°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#643F13
RGB	rgb(100, 63, 19)
HSL	hsl(33, 68%, 23%)
HSV	hsv(33, 81%, 39%)
CMYK	cmyk(0%, 37%, 81%, 60.8%)
CIE-LAB	lab(30.19, 12.00, 32.14)
CIE-LCH	lch(30.19, 34.31, 69.53°)
OKLab	oklab(40.26% 0.0308 0.0707)
OKLCH	oklch(40.26% 0.077 66.5)
XYZ	xyz(7.1511, 6.3120, 1.4577)
Luminance	0.0631 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F13 #133864

analogous

#641713 #643F13 #606413

triadic

#643F13 #13643F #3F1364

tetradic

#643F13 #136417 #133864 #641360

square

#643F13 #136417 #133864 #641360

split-complementary

#643F13 #136064 #171364

monochromatic

#1A1005 #311F09 #643F13 #975F1D #CB8027

Accessibility & contrast

On white

9.28

#643F13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#643F13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F13

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F13	#FFFFFF	#000000	##FFFFFF
##643F13	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B420D

Deuteranopia (green-blind)

#544B14

Tritanopia (blue-blind)

#6E3636

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643f13;
/* rgb */ color: rgb(100, 63, 19);
/* oklch */ color: oklch(40.3% 0.077 66.5);

Tailwind

colors: {
  custom: {
    50: '#947454',
    500: '#643f13',
    950: '#000000',
  },
}

SCSS

$custom: #643f13;
$custom-light: #947454;
$custom-dark: #000000;

JSON

{
  "hex": "#643f13",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 19
  },
  "hsl": {
    "h": 32.593,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.40257,
    "c": 0.07712,
    "h": 66.5
  },
  "luminance": 0.06311
}

Semantic roles & 50–950 ramp

primary

#643F13

secondary

#37659C

accent

#8CEB3D

background

#F9F7F4

surface

#F2EDE7

border

#CCC8C3

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #643F13

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

Preview Lab → · Contrast checker → · Palette generator →