#641A2B#641A2B

#641A2B is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.106 H 11.2°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#641A2B
RGB	rgb(100, 26, 43)
HSL	hsl(346, 59%, 25%)
HSV	hsv(346, 74%, 39%)
CMYK	cmyk(0%, 74%, 57%, 60.8%)
CIE-LAB	lab(22.39, 34.31, 8.11)
CIE-LCH	lch(22.39, 35.26, 13.30°)
OKLab	oklab(34.44% 0.1039 0.0205)
OKLCH	oklch(34.44% 0.106 11.2)
XYZ	xyz(6.0615, 3.6234, 2.6652)
Luminance	0.0362 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641A2B #1A6453

analogous

#641A50 #641A2B #642E1A

triadic

#641A2B #2B641A #1A2B64

tetradic

#641A2B #50641A #1A6453 #2E1A64

square

#641A2B #50641A #1A6453 #2E1A64

split-complementary

#641A2B #1A642E #1A5064

monochromatic

#18060A #330D16 #641A2B #952740 #C53355

Accessibility & contrast

On white

12.18

#641A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#641A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641A2B

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641A2B	#FFFFFF	#000000	##FFFFFF
##641A2B	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2C2B

Deuteranopia (green-blind)

#3F3B29

Tritanopia (blue-blind)

#6E0A21

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641a2b;
/* rgb */ color: rgb(100, 26, 43);
/* oklch */ color: oklch(34.4% 0.106 11.2);

Tailwind

colors: {
  custom: {
    50: '#955c64',
    500: '#641a2b',
    950: '#000000',
  },
}

SCSS

$custom: #641a2b;
$custom-light: #955c64;
$custom-dark: #000000;

JSON

{
  "hex": "#641a2b",
  "rgb": {
    "r": 100,
    "g": 26,
    "b": 43
  },
  "hsl": {
    "h": 346.216,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34439,
    "c": 0.1059,
    "h": 11.2
  },
  "luminance": 0.03623
}

Semantic roles & 50–950 ramp

primary

#641A2B

secondary

#409A85

accent

#E2BE46

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #641A2B

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

Preview Lab → · Contrast checker → · Palette generator →