#2B0400#2B0400

#2B0400 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 18.9% C 0.067 H 34.4°. Best body text is #FFFFFF at 18.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B0400
RGB	rgb(43, 4, 0)
HSL	hsl(6, 100%, 8%)
HSV	hsv(6, 100%, 17%)
CMYK	cmyk(0%, 90.7%, 100%, 83.1%)
CIE-LAB	lab(5.43, 18.65, 8.48)
CIE-LCH	lch(5.43, 20.48, 24.45°)
OKLab	oklab(18.95% 0.0556 0.0381)
OKLCH	oklch(18.95% 0.067 34.4)
XYZ	xyz(1.0398, 0.6006, 0.0612)
Luminance	0.0060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0400 #00272B

analogous

#2B0011 #2B0400 #2B1900

triadic

#2B0400 #002B04 #04002B

tetradic

#2B0400 #112B00 #00272B #19002B

square

#2B0400 #112B00 #00272B #19002B

split-complementary

#2B0400 #002B19 #00112B

monochromatic

#1F0300 #1F0300 #2B0400 #680A00 #A50F00

Accessibility & contrast

On white

18.75

#2B0400 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2B0400 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0400

18.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0400	#FFFFFF	#000000	##FFFFFF
##2B0400	1.00	18.75	1.12	18.75
#FFFFFF	18.75	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0C00

Deuteranopia (green-blind)

#191500

Tritanopia (blue-blind)

#310003

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2b0400;
/* rgb */ color: rgb(43, 4, 0);
/* oklch */ color: oklch(18.9% 0.067 34.4);

Tailwind

colors: {
  custom: {
    50: '#674847',
    500: '#2b0400',
    950: '#000000',
  },
}

SCSS

$custom: #2b0400;
$custom-light: #674847;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0400",
  "rgb": {
    "r": 43,
    "g": 4,
    "b": 0
  },
  "hsl": {
    "h": 5.581,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.18947,
    "c": 0.06742,
    "h": 34.4
  },
  "luminance": 0.006
}

Semantic roles & 50–950 ramp

primary

#2B0400

secondary

#146A73

accent

#EBFF29

background

#F6F4F3

surface

#EBE6E5

border

#C6C2C1

text

#060000

muted

#7A7777

Preview Lab

Preview with #2B0400

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

Preview Lab → · Contrast checker → · Palette generator →