#643C1D#643C1D

#643C1D is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.072 H 56.5°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#643C1D
RGB	rgb(100, 60, 29)
HSL	hsl(26, 55%, 25%)
HSV	hsv(26, 71%, 39%)
CMYK	cmyk(0%, 40%, 71%, 60.8%)
CIE-LAB	lab(29.49, 14.44, 26.08)
CIE-LCH	lch(29.49, 29.81, 61.03°)
OKLab	oklab(39.75% 0.0397 0.0599)
OKLCH	oklch(39.75% 0.072 56.5)
XYZ	xyz(7.0937, 6.0304, 1.9526)
Luminance	0.0603 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C1D #1D4564

analogous

#641D21 #643C1D #645F1D

triadic

#643C1D #1D643C #3C1D64

tetradic

#643C1D #21641D #1D4564 #5F1D64

square

#643C1D #21641D #1D4564 #5F1D64

split-complementary

#643C1D #1D645F #1D2164

monochromatic

#180E07 #35200F #643C1D #93582B #C37539

Accessibility & contrast

On white

9.52

#643C1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#643C1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C1D

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C1D	#FFFFFF	#000000	##FFFFFF
##643C1D	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48401A

Deuteranopia (green-blind)

#51491D

Tritanopia (blue-blind)

#6D3435

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643c1d;
/* rgb */ color: rgb(100, 60, 29);
/* oklch */ color: oklch(39.8% 0.072 56.5);

Tailwind

colors: {
  custom: {
    50: '#94725a',
    500: '#643c1d',
    950: '#000000',
  },
}

SCSS

$custom: #643c1d;
$custom-light: #94725a;
$custom-dark: #000000;

JSON

{
  "hex": "#643c1d",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 29
  },
  "hsl": {
    "h": 26.197,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.3975,
    "c": 0.07188,
    "h": 56.5
  },
  "luminance": 0.0603
}

Semantic roles & 50–950 ramp

primary

#643C1D

secondary

#447499

accent

#9DDE49

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #643C1D

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

Preview Lab → · Contrast checker → · Palette generator →