#641B17#641B17

#641B17 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.1% C 0.106 H 27.3°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#641B17
RGB	rgb(100, 27, 23)
HSL	hsl(3, 63%, 24%)
HSV	hsv(3, 77%, 39%)
CMYK	cmyk(0%, 73%, 77%, 60.8%)
CIE-LAB	lab(22.15, 32.46, 21.37)
CIE-LCH	lch(22.15, 38.86, 33.36°)
OKLab	oklab(34.13% 0.0939 0.0485)
OKLCH	oklch(34.13% 0.106 27.3)
XYZ	xyz(5.8028, 3.5559, 1.1913)
Luminance	0.0355 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B17 #176064

analogous

#64173A #641B17 #644217

triadic

#641B17 #17641B #1B1764

tetradic

#641B17 #3A6417 #176064 #421764

square

#641B17 #3A6417 #176064 #421764

split-complementary

#641B17 #176442 #173A64

monochromatic

#190706 #320E0C #641B17 #962822 #C8362E

Accessibility & contrast

On white

12.27

#641B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#641B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B17

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B17	#FFFFFF	#000000	##FFFFFF
##641B17	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302B16

Deuteranopia (green-blind)

#423B15

Tritanopia (blue-blind)

#6F051B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641b17;
/* rgb */ color: rgb(100, 27, 23);
/* oklch */ color: oklch(34.1% 0.106 27.3);

Tailwind

colors: {
  custom: {
    50: '#965c54',
    500: '#641b17',
    950: '#000000',
  },
}

SCSS

$custom: #641b17;
$custom-light: #965c54;
$custom-dark: #000000;

JSON

{
  "hex": "#641b17",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 23
  },
  "hsl": {
    "h": 3.117,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.34131,
    "c": 0.10565,
    "h": 27.3
  },
  "luminance": 0.03555
}

Semantic roles & 50–950 ramp

primary

#641B17

secondary

#3C969A

accent

#DDE642

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #641B17

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

Preview Lab → · Contrast checker → · Palette generator →