#641723#641723

#641723 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.9% C 0.109 H 16.6°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#641723
RGB	rgb(100, 23, 35)
HSL	hsl(351, 63%, 24%)
HSV	hsv(351, 77%, 39%)
CMYK	cmyk(0%, 77%, 65%, 60.8%)
CIE-LAB	lab(21.74, 34.91, 12.78)
CIE-LCH	lch(21.74, 37.18, 20.11°)
OKLab	oklab(33.9% 0.1044 0.0311)
OKLCH	oklch(33.9% 0.109 16.6)
XYZ	xyz(5.8659, 3.4443, 1.9457)
Luminance	0.0344 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641723 #176458

analogous

#64174A #641723 #643217

triadic

#641723 #236417 #172364

tetradic

#641723 #4A6417 #176458 #321764

square

#641723 #4A6417 #176458 #321764

split-complementary

#641723 #176432 #174A64

monochromatic

#190609 #320C12 #641723 #962234 #C82E46

Accessibility & contrast

On white

12.44

#641723 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#641723 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641723

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641723	#FFFFFF	#000000	##FFFFFF
##641723	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2A23

Deuteranopia (green-blind)

#3F3A21

Tritanopia (blue-blind)

#6E021C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #641723;
/* rgb */ color: rgb(100, 23, 35);
/* oklch */ color: oklch(33.9% 0.109 16.6);

Tailwind

colors: {
  custom: {
    50: '#965b5d',
    500: '#641723',
    950: '#000000',
  },
}

SCSS

$custom: #641723;
$custom-light: #965b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#641723",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 35
  },
  "hsl": {
    "h": 350.649,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33899,
    "c": 0.10891,
    "h": 16.6
  },
  "luminance": 0.03443
}

Semantic roles & 50–950 ramp

primary

#641723

secondary

#3C9A8C

accent

#E6CC42

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #641723

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

Preview Lab → · Contrast checker → · Palette generator →