#643B1F#643B1F

#643B1F is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.6% C 0.071 H 53.5°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#643B1F
RGB	rgb(100, 59, 31)
HSL	hsl(24, 53%, 26%)
HSV	hsv(24, 69%, 39%)
CMYK	cmyk(0%, 41%, 69%, 60.8%)
CIE-LAB	lab(29.25, 15.20, 24.65)
CIE-LCH	lch(29.25, 28.95, 58.34°)
OKLab	oklab(39.57% 0.0423 0.0572)
OKLCH	oklch(39.57% 0.071 53.5)
XYZ	xyz(7.0673, 5.9369, 2.0698)
Luminance	0.0594 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B1F #1F4864

analogous

#641F25 #643B1F #645D1F

triadic

#643B1F #1F643B #3B1F64

tetradic

#643B1F #25641F #1F4864 #5D1F64

square

#643B1F #25641F #1F4864 #5D1F64

split-complementary

#643B1F #1F645D #1F2564

monochromatic

#170E07 #351F11 #643B1F #93572D #C1723C

Accessibility & contrast

On white

9.60

#643B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#643B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B1F

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B1F	#FFFFFF	#000000	##FFFFFF
##643B1F	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F1C

Deuteranopia (green-blind)

#51491F

Tritanopia (blue-blind)

#6D3335

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b1f;
/* rgb */ color: rgb(100, 59, 31);
/* oklch */ color: oklch(39.6% 0.071 53.5);

Tailwind

colors: {
  custom: {
    50: '#94715b',
    500: '#643b1f',
    950: '#000000',
  },
}

SCSS

$custom: #643b1f;
$custom-light: #94715b;
$custom-dark: #000000;

JSON

{
  "hex": "#643b1f",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 31
  },
  "hsl": {
    "h": 24.348,
    "s": 52.672,
    "l": 25.686
  },
  "oklch": {
    "l": 0.39575,
    "c": 0.07113,
    "h": 53.5
  },
  "luminance": 0.05936
}

Semantic roles & 50–950 ramp

primary

#643B1F

secondary

#467798

accent

#A2DC4C

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0704

muted

#7E7A79

Preview Lab

Preview with #643B1F

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

Preview Lab → · Contrast checker → · Palette generator →