#2B0401#2B0401

#2B0401 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 19.0% C 0.067 H 32.2°. Best body text is #FFFFFF at 18.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B0401
RGB	rgb(43, 4, 1)
HSL	hsl(4, 95%, 9%)
HSV	hsv(4, 98%, 17%)
CMYK	cmyk(0%, 90.7%, 97.7%, 83.1%)
CIE-LAB	lab(5.45, 18.76, 8.10)
CIE-LCH	lch(5.45, 20.43, 23.36°)
OKLab	oklab(18.97% 0.0566 0.0356)
OKLCH	oklch(18.97% 0.067 32.2)
XYZ	xyz(1.0453, 0.6028, 0.0900)
Luminance	0.0060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0401 #01282B

analogous

#2B0113 #2B0401 #2B1901

triadic

#2B0401 #012B04 #04012B

tetradic

#2B0401 #132B01 #01282B #19012B

square

#2B0401 #132B01 #01282B #19012B

split-complementary

#2B0401 #012B19 #01132B

monochromatic

#1E0301 #1E0301 #2B0401 #670A02 #A30F04

Accessibility & contrast

On white

18.74

#2B0401 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2B0401 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0401

18.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0401	#FFFFFF	#000000	##FFFFFF
##2B0401	1.00	18.74	1.12	18.74
#FFFFFF	18.74	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0C01

Deuteranopia (green-blind)

#191500

Tritanopia (blue-blind)

#310003

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2b0401;
/* rgb */ color: rgb(43, 4, 1);
/* oklch */ color: oklch(19.0% 0.067 32.2);

Tailwind

colors: {
  custom: {
    50: '#674847',
    500: '#2b0401',
    950: '#000000',
  },
}

SCSS

$custom: #2b0401;
$custom-light: #674847;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0401",
  "rgb": {
    "r": 43,
    "g": 4,
    "b": 1
  },
  "hsl": {
    "h": 4.286,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18974,
    "c": 0.06684,
    "h": 32.2
  },
  "luminance": 0.00603
}

Semantic roles & 50–950 ramp

primary

#2B0401

secondary

#176B71

accent

#F0FF29

background

#F6F4F3

surface

#EBE6E5

border

#C6C2C1

text

#060000

muted

#7A7777

Preview Lab

Preview with #2B0401

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

Preview Lab → · Contrast checker → · Palette generator →