#641A21#641A21

#641A21 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.2% C 0.106 H 19.5°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#641A21
RGB	rgb(100, 26, 33)
HSL	hsl(354, 59%, 25%)
HSV	hsv(354, 74%, 39%)
CMYK	cmyk(0%, 74%, 67%, 60.8%)
CIE-LAB	lab(22.16, 33.51, 14.70)
CIE-LCH	lch(22.16, 36.59, 23.68°)
OKLab	oklab(34.19% 0.0995 0.0353)
OKLCH	oklch(34.19% 0.106 19.5)
XYZ	xyz(5.9000, 3.5588, 1.8148)
Luminance	0.0356 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641A21 #1A645D

analogous

#641A46 #641A21 #64381A

triadic

#641A21 #21641A #1A2164

tetradic

#641A21 #46641A #1A645D #381A64

square

#641A21 #46641A #1A645D #381A64

split-complementary

#641A21 #1A6438 #1A4664

monochromatic

#180608 #330D11 #641A21 #952731 #C53341

Accessibility & contrast

On white

12.27

#641A21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#641A21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641A21

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641A21	#FFFFFF	#000000	##FFFFFF
##641A21	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2B21

Deuteranopia (green-blind)

#413B1F

Tritanopia (blue-blind)

#6E061D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641a21;
/* rgb */ color: rgb(100, 26, 33);
/* oklch */ color: oklch(34.2% 0.106 19.5);

Tailwind

colors: {
  custom: {
    50: '#965c5c',
    500: '#641a21',
    950: '#000000',
  },
}

SCSS

$custom: #641a21;
$custom-light: #965c5c;
$custom-dark: #000000;

JSON

{
  "hex": "#641a21",
  "rgb": {
    "r": 100,
    "g": 26,
    "b": 33
  },
  "hsl": {
    "h": 354.324,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34193,
    "c": 0.10555,
    "h": 19.5
  },
  "luminance": 0.03558
}

Semantic roles & 50–950 ramp

primary

#641A21

secondary

#409A91

accent

#E2D346

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #641A21

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

Preview Lab → · Contrast checker → · Palette generator →