#641718#641718

#641718 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.110 H 24.7°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#641718
RGB	rgb(100, 23, 24)
HSL	hsl(359, 63%, 24%)
HSV	hsv(359, 77%, 39%)
CMYK	cmyk(0%, 77%, 76%, 60.8%)
CIE-LAB	lab(21.54, 34.22, 20.01)
CIE-LCH	lch(21.54, 39.64, 30.32°)
OKLab	oklab(33.68% 0.0996 0.0458)
OKLCH	oklch(33.68% 0.11 24.7)
XYZ	xyz(5.7274, 3.3889, 1.2165)
Luminance	0.0339 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641718 #176463

analogous

#64173F #641718 #643D17

triadic

#641718 #186417 #171864

tetradic

#641718 #3F6417 #176463 #3D1764

square

#641718 #3F6417 #176463 #3D1764

split-complementary

#641718 #17643D #173F64

monochromatic

#190606 #320C0C #641718 #962224 #C82E30

Accessibility & contrast

On white

12.52

#641718 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#641718 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641718

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641718	#FFFFFF	#000000	##FFFFFF
##641718	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2917

Deuteranopia (green-blind)

#413A15

Tritanopia (blue-blind)

#6F0018

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #641718;
/* rgb */ color: rgb(100, 23, 24);
/* oklch */ color: oklch(33.7% 0.110 24.7);

Tailwind

colors: {
  custom: {
    50: '#975b54',
    500: '#641718',
    950: '#000000',
  },
}

SCSS

$custom: #641718;
$custom-light: #975b54;
$custom-dark: #000000;

JSON

{
  "hex": "#641718",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 24
  },
  "hsl": {
    "h": 359.221,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33682,
    "c": 0.10965,
    "h": 24.7
  },
  "luminance": 0.03388
}

Semantic roles & 50–950 ramp

primary

#641718

secondary

#3C9A99

accent

#E6E442

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #641718

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

Preview Lab → · Contrast checker → · Palette generator →