#641F21#641F21

#641F21 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.100 H 22.3°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#641F21
RGB	rgb(100, 31, 33)
HSL	hsl(358, 53%, 26%)
HSV	hsv(358, 69%, 39%)
CMYK	cmyk(0%, 69%, 67%, 60.8%)
CIE-LAB	lab(23.00, 31.22, 15.78)
CIE-LCH	lch(23.00, 34.98, 26.81°)
OKLab	oklab(34.82% 0.0922 0.0378)
OKLCH	oklch(34.82% 0.1 22.3)
XYZ	xyz(6.0206, 3.7999, 1.8550)
Luminance	0.0380 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641F21 #1F6462

analogous

#641F43 #641F21 #643F1F

triadic

#641F21 #21641F #1F2164

tetradic

#641F21 #43641F #1F6462 #3F1F64

square

#641F21 #43641F #1F6462 #3F1F64

split-complementary

#641F21 #1F643F #1F4364

monochromatic

#170708 #351112 #641F21 #932D30 #C13C40

Accessibility & contrast

On white

11.93

#641F21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#641F21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641F21

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641F21	#FFFFFF	#000000	##FFFFFF
##641F21	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312E21

Deuteranopia (green-blind)

#423C1F

Tritanopia (blue-blind)

#6E1020

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #641f21;
/* rgb */ color: rgb(100, 31, 33);
/* oklch */ color: oklch(34.8% 0.100 22.3);

Tailwind

colors: {
  custom: {
    50: '#955f5c',
    500: '#641f21',
    950: '#000000',
  },
}

SCSS

$custom: #641f21;
$custom-light: #955f5c;
$custom-dark: #000000;

JSON

{
  "hex": "#641f21",
  "rgb": {
    "r": 100,
    "g": 31,
    "b": 33
  },
  "hsl": {
    "h": 358.261,
    "s": 52.672,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34824,
    "c": 0.09963,
    "h": 22.3
  },
  "luminance": 0.03799
}

Semantic roles & 50–950 ramp

primary

#641F21

secondary

#469896

accent

#DCD84C

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0504

muted

#7E7979

Preview Lab

Preview with #641F21

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

Preview Lab → · Contrast checker → · Palette generator →