#641F1C#641F1C

#641F1C is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.7% C 0.100 H 26.2°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#641F1C
RGB	rgb(100, 31, 28)
HSL	hsl(3, 56%, 25%)
HSV	hsv(3, 72%, 39%)
CMYK	cmyk(0%, 69%, 72%, 60.8%)
CIE-LAB	lab(22.91, 30.88, 19.00)
CIE-LCH	lch(22.91, 36.26, 31.60°)
OKLab	oklab(34.73% 0.09 0.0443)
OKLCH	oklch(34.73% 0.1 26.2)
XYZ	xyz(5.9557, 3.7740, 1.5132)
Luminance	0.0377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641F1C #1C6164

analogous

#641C3D #641F1C #64431C

triadic

#641F1C #1C641F #1F1C64

tetradic

#641F1C #3D641C #1C6164 #431C64

square

#641F1C #3D641C #1C6164 #431C64

split-complementary

#641F1C #1C6443 #1C3D64

monochromatic

#180707 #34100F #641F1C #942E29 #C43D37

Accessibility & contrast

On white

11.97

#641F1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#641F1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641F1C

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641F1C	#FFFFFF	#000000	##FFFFFF
##641F1C	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322D1B

Deuteranopia (green-blind)

#433C1A

Tritanopia (blue-blind)

#6E0E1F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #641f1c;
/* rgb */ color: rgb(100, 31, 28);
/* oklch */ color: oklch(34.7% 0.100 26.2);

Tailwind

colors: {
  custom: {
    50: '#965f58',
    500: '#641f1c',
    950: '#000000',
  },
}

SCSS

$custom: #641f1c;
$custom-light: #965f58;
$custom-dark: #000000;

JSON

{
  "hex": "#641f1c",
  "rgb": {
    "r": 100,
    "g": 31,
    "b": 28
  },
  "hsl": {
    "h": 2.5,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34728,
    "c": 0.10034,
    "h": 26.2
  },
  "luminance": 0.03773
}

Semantic roles & 50–950 ramp

primary

#641F1C

secondary

#439699

accent

#D9E048

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0503

muted

#7E7978

Preview Lab

Preview with #641F1C

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

Preview Lab → · Contrast checker → · Palette generator →