#641D1C#641D1C

#641D1C is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.103 H 25.0°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#641D1C
RGB	rgb(100, 29, 28)
HSL	hsl(1, 56%, 25%)
HSV	hsv(1, 72%, 39%)
CMYK	cmyk(0%, 71%, 72%, 60.8%)
CIE-LAB	lab(22.56, 31.83, 18.57)
CIE-LCH	lch(22.56, 36.85, 30.27°)
OKLab	oklab(34.47% 0.093 0.0434)
OKLCH	oklch(34.47% 0.103 25)
XYZ	xyz(5.9051, 3.6727, 1.4963)
Luminance	0.0367 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641D1C #1C6364

analogous

#641C3F #641D1C #64411C

triadic

#641D1C #1C641D #1D1C64

tetradic

#641D1C #3F641C #1C6364 #411C64

square

#641D1C #3F641C #1C6364 #411C64

split-complementary

#641D1C #1C6441 #1C3F64

monochromatic

#180707 #340F0F #641D1C #942B29 #C43937

Accessibility & contrast

On white

12.11

#641D1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#641D1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641D1C

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641D1C	#FFFFFF	#000000	##FFFFFF
##641D1C	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302C1B

Deuteranopia (green-blind)

#423C1A

Tritanopia (blue-blind)

#6E0A1D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641d1c;
/* rgb */ color: rgb(100, 29, 28);
/* oklch */ color: oklch(34.5% 0.103 25.0);

Tailwind

colors: {
  custom: {
    50: '#965e58',
    500: '#641d1c',
    950: '#000000',
  },
}

SCSS

$custom: #641d1c;
$custom-light: #965e58;
$custom-dark: #000000;

JSON

{
  "hex": "#641d1c",
  "rgb": {
    "r": 100,
    "g": 29,
    "b": 28
  },
  "hsl": {
    "h": 0.833,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34465,
    "c": 0.10263,
    "h": 25
  },
  "luminance": 0.03672
}

Semantic roles & 50–950 ramp

primary

#641D1C

secondary

#439899

accent

#DDE048

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #641D1C

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

Preview Lab → · Contrast checker → · Palette generator →