#643B16#643B16

#643B16 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.5% C 0.077 H 59.4°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#643B16
RGB	rgb(100, 59, 22)
HSL	hsl(28, 64%, 24%)
HSV	hsv(28, 78%, 39%)
CMYK	cmyk(0%, 41%, 78%, 60.8%)
CIE-LAB	lab(29.15, 14.63, 29.58)
CIE-LCH	lch(29.15, 33.00, 63.69°)
OKLab	oklab(39.46% 0.0391 0.066)
OKLCH	oklch(39.46% 0.077 59.4)
XYZ	xyz(6.9649, 5.8959, 1.5301)
Luminance	0.0590 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B16 #163F64

analogous

#641618 #643B16 #646216

triadic

#643B16 #16643B #3B1664

tetradic

#643B16 #186416 #163F64 #621664

square

#643B16 #186416 #163F64 #621664

split-complementary

#643B16 #166462 #161864

monochromatic

#190F06 #321D0B #643B16 #965921 #C8762C

Accessibility & contrast

On white

9.64

#643B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#643B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B16

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B16	#FFFFFF	#000000	##FFFFFF
##643B16	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F12

Deuteranopia (green-blind)

#514816

Tritanopia (blue-blind)

#6E3233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643b16;
/* rgb */ color: rgb(100, 59, 22);
/* oklch */ color: oklch(39.5% 0.077 59.4);

Tailwind

colors: {
  custom: {
    50: '#947155',
    500: '#643b16',
    950: '#000000',
  },
}

SCSS

$custom: #643b16;
$custom-light: #947155;
$custom-dark: #000000;

JSON

{
  "hex": "#643b16",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 22
  },
  "hsl": {
    "h": 28.462,
    "s": 63.934,
    "l": 23.922
  },
  "oklch": {
    "l": 0.39461,
    "c": 0.07666,
    "h": 59.4
  },
  "luminance": 0.05895
}

Semantic roles & 50–950 ramp

primary

#643B16

secondary

#3B6D9B

accent

#98E741

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #643B16

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

Preview Lab → · Contrast checker → · Palette generator →