#643B13#643B13

#643B13 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.4% C 0.078 H 60.9°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#643B13
RGB	rgb(100, 59, 19)
HSL	hsl(30, 68%, 23%)
HSV	hsv(30, 81%, 39%)
CMYK	cmyk(0%, 41%, 81%, 60.8%)
CIE-LAB	lab(29.12, 14.47, 31.09)
CIE-LCH	lch(29.12, 34.29, 65.04°)
OKLab	oklab(39.43% 0.0381 0.0685)
OKLCH	oklch(39.43% 0.078 60.9)
XYZ	xyz(6.9376, 5.8850, 1.3865)
Luminance	0.0588 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B13 #133C64

analogous

#641313 #643B13 #646313

triadic

#643B13 #13643B #3B1364

tetradic

#643B13 #136413 #133C64 #631364

square

#643B13 #136413 #133C64 #631364

split-complementary

#643B13 #136463 #131364

monochromatic

#1A0F05 #311D09 #643B13 #97591D #CB7827

Accessibility & contrast

On white

9.65

#643B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B13

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B13	#FFFFFF	#000000	##FFFFFF
##643B13	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F0E

Deuteranopia (green-blind)

#514813

Tritanopia (blue-blind)

#6E3233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b13;
/* rgb */ color: rgb(100, 59, 19);
/* oklch */ color: oklch(39.4% 0.078 60.9);

Tailwind

colors: {
  custom: {
    50: '#957153',
    500: '#643b13',
    950: '#000000',
  },
}

SCSS

$custom: #643b13;
$custom-light: #957153;
$custom-dark: #000000;

JSON

{
  "hex": "#643b13",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 19
  },
  "hsl": {
    "h": 29.63,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.39431,
    "c": 0.07835,
    "h": 60.9
  },
  "luminance": 0.05884
}

Semantic roles & 50–950 ramp

primary

#643B13

secondary

#376A9C

accent

#95EB3D

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #643B13

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

Preview Lab → · Contrast checker → · Palette generator →