#643127#643127

#643127 is a dark, moderate red. Relative luminance 0.051; OKLCH L 37.8% C 0.076 H 32.3°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#643127
RGB	rgb(100, 49, 39)
HSL	hsl(10, 44%, 27%)
HSV	hsv(10, 61%, 39%)
CMYK	cmyk(0%, 51%, 61%, 60.8%)
CIE-LAB	lab(26.89, 21.90, 16.79)
CIE-LCH	lch(26.89, 27.60, 37.47°)
OKLab	oklab(37.8% 0.0642 0.0407)
OKLCH	oklch(37.8% 0.076 32.3)
XYZ	xyz(6.7206, 5.0532, 2.5405)
Luminance	0.0505 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643127 #275A64

analogous

#64273C #643127 #645027

triadic

#643127 #276431 #312764

tetradic

#643127 #3C6427 #275A64 #502764

square

#643127 #3C6427 #275A64 #502764

split-complementary

#643127 #276450 #273C64

monochromatic

#160B09 #381B16 #643127 #904738 #B95E4C

Accessibility & contrast

On white

10.45

#643127 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#643127 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643127

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643127	#FFFFFF	#000000	##FFFFFF
##643127	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3926

Deuteranopia (green-blind)

#4A4426

Tritanopia (blue-blind)

#6D282F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #643127;
/* rgb */ color: rgb(100, 49, 39);
/* oklch */ color: oklch(37.8% 0.076 32.3);

Tailwind

colors: {
  custom: {
    50: '#946a61',
    500: '#643127',
    950: '#000000',
  },
}

SCSS

$custom: #643127;
$custom-light: #946a61;
$custom-dark: #000000;

JSON

{
  "hex": "#643127",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 39
  },
  "hsl": {
    "h": 9.836,
    "s": 43.885,
    "l": 27.255
  },
  "oklch": {
    "l": 0.378,
    "c": 0.076,
    "h": 32.3
  },
  "luminance": 0.05052
}

Semantic roles & 50–950 ramp

primary

#643127

secondary

#508B97

accent

#BFD454

background

#F9F6F5

surface

#F2EBE9

border

#CCC6C5

text

#0E0605

muted

#7E7A79

Preview Lab

Preview with #643127

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

Preview Lab → · Contrast checker → · Palette generator →