#643C30#643C30

#643C30 is a dark, moderate red. Relative luminance 0.062; OKLCH L 40.1% C 0.060 H 37.5°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#643C30
RGB	rgb(100, 60, 48)
HSL	hsl(14, 35%, 29%)
HSV	hsv(14, 52%, 39%)
CMYK	cmyk(0%, 40%, 52%, 60.8%)
CIE-LAB	lab(29.80, 16.14, 14.81)
CIE-LCH	lch(29.80, 21.90, 42.55°)
OKLab	oklab(40.09% 0.0479 0.0367)
OKLCH	oklch(40.09% 0.06 37.5)
XYZ	xyz(7.4053, 6.1551, 3.5938)
Luminance	0.0615 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C30 #305864

analogous

#64303E #643C30 #645630

triadic

#643C30 #30643C #3C3064

tetradic

#643C30 #3E6430 #305864 #563064

square

#643C30 #3E6430 #305864 #563064

split-complementary

#643C30 #306456 #303E64

monochromatic

#150C0A #3B231C #643C30 #8D5544 #B1715D

Accessibility & contrast

On white

9.41

#643C30 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#643C30 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C30

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C30	#FFFFFF	#000000	##FFFFFF
##643C30	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46412F

Deuteranopia (green-blind)

#4F4930

Tritanopia (blue-blind)

#6C3639

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643c30;
/* rgb */ color: rgb(100, 60, 48);
/* oklch */ color: oklch(40.1% 0.060 37.5);

Tailwind

colors: {
  custom: {
    50: '#927268',
    500: '#643c30',
    950: '#000000',
  },
}

SCSS

$custom: #643c30;
$custom-light: #927268;
$custom-dark: #000000;

JSON

{
  "hex": "#643c30",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 48
  },
  "hsl": {
    "h": 13.846,
    "s": 35.135,
    "l": 29.02
  },
  "oklch": {
    "l": 0.40091,
    "c": 0.0603,
    "h": 37.5
  },
  "luminance": 0.06154
}

Semantic roles & 50–950 ramp

primary

#643C30

secondary

#5A8895

accent

#B2CB5D

background

#F9F6F6

surface

#F1ECEB

border

#CBC7C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #643C30

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

Preview Lab → · Contrast checker → · Palette generator →