#641A1F#641A1F

#641A1F is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.2% C 0.106 H 21.1°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#641A1F
RGB	rgb(100, 26, 31)
HSL	hsl(356, 59%, 25%)
HSV	hsv(356, 74%, 39%)
CMYK	cmyk(0%, 74%, 69%, 60.8%)
CIE-LAB	lab(22.12, 33.37, 16.01)
CIE-LCH	lch(22.12, 37.02, 25.63°)
OKLab	oklab(34.15% 0.0986 0.0381)
OKLCH	oklch(34.15% 0.106 21.1)
XYZ	xyz(5.8729, 3.5479, 1.6716)
Luminance	0.0355 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641A1F #1A645F

analogous

#641A44 #641A1F #643A1A

triadic

#641A1F #1F641A #1A1F64

tetradic

#641A1F #44641A #1A645F #3A1A64

square

#641A1F #44641A #1A645F #3A1A64

split-complementary

#641A1F #1A643A #1A4464

monochromatic

#180608 #330D10 #641A1F #95272E #C5333D

Accessibility & contrast

On white

12.29

#641A1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#641A1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641A1F

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641A1F	#FFFFFF	#000000	##FFFFFF
##641A1F	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2B1F

Deuteranopia (green-blind)

#413B1D

Tritanopia (blue-blind)

#6E051C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641a1f;
/* rgb */ color: rgb(100, 26, 31);
/* oklch */ color: oklch(34.2% 0.106 21.1);

Tailwind

colors: {
  custom: {
    50: '#965c5a',
    500: '#641a1f',
    950: '#000000',
  },
}

SCSS

$custom: #641a1f;
$custom-light: #965c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#641a1f",
  "rgb": {
    "r": 100,
    "g": 26,
    "b": 31
  },
  "hsl": {
    "h": 355.946,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34152,
    "c": 0.10569,
    "h": 21.1
  },
  "luminance": 0.03547
}

Semantic roles & 50–950 ramp

primary

#641A1F

secondary

#409A94

accent

#E2D746

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #641A1F

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

Preview Lab → · Contrast checker → · Palette generator →