#641D0F#641D0F

#641D0F is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.3% C 0.105 H 33.1°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#641D0F
RGB	rgb(100, 29, 15)
HSL	hsl(10, 74%, 23%)
HSV	hsv(10, 85%, 39%)
CMYK	cmyk(0%, 71%, 85%, 60.8%)
CIE-LAB	lab(22.39, 31.19, 26.48)
CIE-LCH	lch(22.39, 40.92, 40.33°)
OKLab	oklab(34.28% 0.0881 0.0574)
OKLCH	oklch(34.28% 0.105 33.1)
XYZ	xyz(5.7818, 3.6234, 0.8468)
Luminance	0.0362 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641D0F #0F5664

analogous

#640F2C #641D0F #64470F

triadic

#641D0F #0F641D #1D0F64

tetradic

#641D0F #2C640F #0F5664 #470F64

square

#641D0F #2C640F #0F5664 #470F64

split-complementary

#641D0F #0F6447 #0F2C64

monochromatic

#1B0804 #2F0E07 #641D0F #992C17 #CE3C1F

Accessibility & contrast

On white

12.18

#641D0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#641D0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641D0F

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641D0F	#FFFFFF	#000000	##FFFFFF
##641D0F	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322C0D

Deuteranopia (green-blind)

#433B0C

Tritanopia (blue-blind)

#6F071A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641d0f;
/* rgb */ color: rgb(100, 29, 15);
/* oklch */ color: oklch(34.3% 0.105 33.1);

Tailwind

colors: {
  custom: {
    50: '#975d4e',
    500: '#641d0f',
    950: '#000000',
  },
}

SCSS

$custom: #641d0f;
$custom-light: #975d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#641d0f",
  "rgb": {
    "r": 100,
    "g": 29,
    "b": 15
  },
  "hsl": {
    "h": 9.882,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.3428,
    "c": 0.10516,
    "h": 33.1
  },
  "luminance": 0.03623
}

Semantic roles & 50–950 ramp

primary

#641D0F

secondary

#328B9D

accent

#D2F137

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #641D0F

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

Preview Lab → · Contrast checker → · Palette generator →