#641B0E#641B0E

#641B0E is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.107 H 32.4°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#641B0E
RGB	rgb(100, 27, 14)
HSL	hsl(9, 75%, 22%)
HSV	hsv(9, 86%, 39%)
CMYK	cmyk(0%, 73%, 86%, 60.8%)
CIE-LAB	lab(22.04, 32.07, 26.63)
CIE-LCH	lch(22.04, 41.69, 39.71°)
OKLab	oklab(34.02% 0.0906 0.0576)
OKLCH	oklch(34.02% 0.107 32.4)
XYZ	xyz(5.7274, 3.5258, 0.7943)
Luminance	0.0352 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B0E #0E5764

analogous

#640E2C #641B0E #64460E

triadic

#641B0E #0E641B #1B0E64

tetradic

#641B0E #2C640E #0E5764 #460E64

square

#641B0E #2C640E #0E5764 #460E64

split-complementary

#641B0E #0E6446 #0E2C64

monochromatic

#1B0704 #2E0D06 #641B0E #9A2916 #CF381D

Accessibility & contrast

On white

12.32

#641B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#641B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B0E

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B0E	#FFFFFF	#000000	##FFFFFF
##641B0E	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302A0C

Deuteranopia (green-blind)

#423B0B

Tritanopia (blue-blind)

#6F0319

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641b0e;
/* rgb */ color: rgb(100, 27, 14);
/* oklch */ color: oklch(34.0% 0.107 32.4);

Tailwind

colors: {
  custom: {
    50: '#975c4e',
    500: '#641b0e',
    950: '#000000',
  },
}

SCSS

$custom: #641b0e;
$custom-light: #975c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#641b0e",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 14
  },
  "hsl": {
    "h": 9.07,
    "s": 75.439,
    "l": 22.353
  },
  "oklch": {
    "l": 0.34015,
    "c": 0.10737,
    "h": 32.4
  },
  "luminance": 0.03525
}

Semantic roles & 50–950 ramp

primary

#641B0E

secondary

#318D9D

accent

#D6F236

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #641B0E

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

Preview Lab → · Contrast checker → · Palette generator →