#641C18#641C18

#641C18 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.3% C 0.104 H 27.2°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#641C18
RGB	rgb(100, 28, 24)
HSL	hsl(3, 61%, 24%)
HSV	hsv(3, 76%, 39%)
CMYK	cmyk(0%, 72%, 76%, 60.8%)
CIE-LAB	lab(22.33, 32.06, 20.93)
CIE-LCH	lch(22.33, 38.29, 33.13°)
OKLab	oklab(34.27% 0.0928 0.0478)
OKLCH	oklch(34.27% 0.104 27.2)
XYZ	xyz(5.8363, 3.6066, 1.2528)
Luminance	0.0361 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C18 #186064

analogous

#64183A #641C18 #644218

triadic

#641C18 #18641C #1C1864

tetradic

#641C18 #3A6418 #186064 #421864

square

#641C18 #3A6418 #186064 #421864

split-complementary

#641C18 #186442 #183A64

monochromatic

#190706 #330E0C #641C18 #952A24 #C73830

Accessibility & contrast

On white

12.20

#641C18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#641C18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C18

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C18	#FFFFFF	#000000	##FFFFFF
##641C18	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302B17

Deuteranopia (green-blind)

#423B16

Tritanopia (blue-blind)

#6F071C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641c18;
/* rgb */ color: rgb(100, 28, 24);
/* oklch */ color: oklch(34.3% 0.104 27.2);

Tailwind

colors: {
  custom: {
    50: '#965d55',
    500: '#641c18',
    950: '#000000',
  },
}

SCSS

$custom: #641c18;
$custom-light: #965d55;
$custom-dark: #000000;

JSON

{
  "hex": "#641c18",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 24
  },
  "hsl": {
    "h": 3.158,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34271,
    "c": 0.1044,
    "h": 27.2
  },
  "luminance": 0.03606
}

Semantic roles & 50–950 ramp

primary

#641C18

secondary

#3E959A

accent

#DCE443

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #641C18

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

Preview Lab → · Contrast checker → · Palette generator →