#641B19#641B19

#641B19 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.2% C 0.105 H 26.0°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#641B19
RGB	rgb(100, 27, 25)
HSL	hsl(2, 60%, 25%)
HSV	hsv(2, 75%, 39%)
CMYK	cmyk(0%, 73%, 75%, 60.8%)
CIE-LAB	lab(22.18, 32.57, 20.10)
CIE-LCH	lch(22.18, 38.27, 31.68°)
OKLab	oklab(34.16% 0.0947 0.0462)
OKLCH	oklch(34.16% 0.105 26)
XYZ	xyz(5.8236, 3.5642, 1.3008)
Luminance	0.0356 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B19 #196264

analogous

#64193D #641B19 #644119

triadic

#641B19 #19641B #1B1964

tetradic

#641B19 #3D6419 #196264 #411964

square

#641B19 #3D6419 #196264 #411964

split-complementary

#641B19 #196441 #193D64

monochromatic

#180706 #330E0D #641B19 #952825 #C63531

Accessibility & contrast

On white

12.26

#641B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#641B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B19

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B19	#FFFFFF	#000000	##FFFFFF
##641B19	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2B18

Deuteranopia (green-blind)

#423B17

Tritanopia (blue-blind)

#6E051B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641b19;
/* rgb */ color: rgb(100, 27, 25);
/* oklch */ color: oklch(34.2% 0.105 26.0);

Tailwind

colors: {
  custom: {
    50: '#965d55',
    500: '#641b19',
    950: '#000000',
  },
}

SCSS

$custom: #641b19;
$custom-light: #965d55;
$custom-dark: #000000;

JSON

{
  "hex": "#641b19",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 25
  },
  "hsl": {
    "h": 1.6,
    "s": 60,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34162,
    "c": 0.10532,
    "h": 26
  },
  "luminance": 0.03563
}

Semantic roles & 50–950 ramp

primary

#641B19

secondary

#3F989A

accent

#DFE345

background

#F9F5F5

surface

#F2E9E8

border

#CCC5C4

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #641B19

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

Preview Lab → · Contrast checker → · Palette generator →