#643A30#643A30

#643A30 is a dark, moderate red. Relative luminance 0.059; OKLCH L 39.7% C 0.062 H 34.2°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#643A30
RGB	rgb(100, 58, 48)
HSL	hsl(12, 35%, 29%)
HSV	hsv(12, 52%, 39%)
CMYK	cmyk(0%, 42%, 52%, 60.8%)
CIE-LAB	lab(29.28, 17.37, 14.13)
CIE-LCH	lch(29.28, 22.39, 39.13°)
OKLab	oklab(39.69% 0.0516 0.0351)
OKLCH	oklch(39.69% 0.062 34.2)
XYZ	xyz(7.3025, 5.9495, 3.5595)
Luminance	0.0595 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A30 #305A64

analogous

#643040 #643A30 #645430

triadic

#643A30 #30643A #3A3064

tetradic

#643A30 #406430 #305A64 #543064

square

#643A30 #406430 #305A64 #543064

split-complementary

#643A30 #306454 #304064

monochromatic

#150C0A #3B221C #643A30 #8D5244 #B16D5D

Accessibility & contrast

On white

9.59

#643A30 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#643A30 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A30

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A30	#FFFFFF	#000000	##FFFFFF
##643A30	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44402F

Deuteranopia (green-blind)

#4E482F

Tritanopia (blue-blind)

#6D3437

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #643a30;
/* rgb */ color: rgb(100, 58, 48);
/* oklch */ color: oklch(39.7% 0.062 34.2);

Tailwind

colors: {
  custom: {
    50: '#937068',
    500: '#643a30',
    950: '#000000',
  },
}

SCSS

$custom: #643a30;
$custom-light: #937068;
$custom-dark: #000000;

JSON

{
  "hex": "#643a30",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 48
  },
  "hsl": {
    "h": 11.538,
    "s": 35.135,
    "l": 29.02
  },
  "oklch": {
    "l": 0.39694,
    "c": 0.06239,
    "h": 34.2
  },
  "luminance": 0.05949
}

Semantic roles & 50–950 ramp

primary

#643A30

secondary

#5A8A95

accent

#B6CB5D

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0706

muted

#7E7A7A

Preview Lab

Preview with #643A30

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

Preview Lab → · Contrast checker → · Palette generator →