#2B0500#2B0500

#2B0500 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 19.1% C 0.066 H 35.8°. Best body text is #FFFFFF at 18.68:1 contrast (WCAG AA passes).

Color values

HEX	#2B0500
RGB	rgb(43, 5, 0)
HSL	hsl(7, 100%, 8%)
HSV	hsv(7, 100%, 17%)
CMYK	cmyk(0%, 88.4%, 100%, 83.1%)
CIE-LAB	lab(5.62, 18.19, 8.76)
CIE-LCH	lch(5.62, 20.19, 25.73°)
OKLab	oklab(19.13% 0.0535 0.0385)
OKLCH	oklch(19.13% 0.066 35.8)
XYZ	xyz(1.0507, 0.6223, 0.0648)
Luminance	0.0062 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0500 #00262B

analogous

#2B0010 #2B0500 #2B1A00

triadic

#2B0500 #002B05 #05002B

tetradic

#2B0500 #102B00 #00262B #1A002B

square

#2B0500 #102B00 #00262B #1A002B

split-complementary

#2B0500 #002B1A #00102B

monochromatic

#1F0400 #1F0400 #2B0500 #680C00 #A51300

Accessibility & contrast

On white

18.68

#2B0500 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2B0500 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0500

18.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0500	#FFFFFF	#000000	##FFFFFF
##2B0500	1.00	18.68	1.12	18.68
#FFFFFF	18.68	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100D00

Deuteranopia (green-blind)

#1A1600

Tritanopia (blue-blind)

#310004

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2b0500;
/* rgb */ color: rgb(43, 5, 0);
/* oklch */ color: oklch(19.1% 0.066 35.8);

Tailwind

colors: {
  custom: {
    50: '#674847',
    500: '#2b0500',
    950: '#000000',
  },
}

SCSS

$custom: #2b0500;
$custom-light: #674847;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0500",
  "rgb": {
    "r": 43,
    "g": 5,
    "b": 0
  },
  "hsl": {
    "h": 6.977,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.19134,
    "c": 0.06592,
    "h": 35.8
  },
  "luminance": 0.00622
}

Semantic roles & 50–950 ramp

primary

#2B0500

secondary

#146873

accent

#E6FF29

background

#F6F4F3

surface

#EBE6E5

border

#C6C2C1

text

#060000

muted

#7A7777

Preview Lab

Preview with #2B0500

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

Preview Lab → · Contrast checker → · Palette generator →