#2B0404#2B0404

#2B0404 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 19.1% C 0.066 H 26.1°. Best body text is #FFFFFF at 18.72:1 contrast (WCAG AA passes).

Color values

HEX	#2B0404
RGB	rgb(43, 4, 4)
HSL	hsl(0, 83%, 9%)
HSV	hsv(0, 91%, 17%)
CMYK	cmyk(0%, 90.7%, 90.7%, 83.1%)
CIE-LAB	lab(5.50, 19.08, 6.96)
CIE-LCH	lch(5.50, 20.31, 20.06°)
OKLab	oklab(19.06% 0.059 0.0289)
OKLCH	oklch(19.06% 0.066 26.1)
XYZ	xyz(1.0617, 0.6094, 0.1766)
Luminance	0.0061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0404 #042B2B

analogous

#2B0418 #2B0404 #2B1804

triadic

#2B0404 #042B04 #04042B

tetradic

#2B0404 #182B04 #042B2B #18042B

square

#2B0404 #182B04 #042B2B #18042B

split-complementary

#2B0404 #042B18 #04182B

monochromatic

#1C0303 #1C0303 #2B0404 #630909 #9B0E0E

Accessibility & contrast

On white

18.72

#2B0404 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2B0404 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0404

18.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0404	#FFFFFF	#000000	##FFFFFF
##2B0404	1.00	18.72	1.12	18.72
#FFFFFF	18.72	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0C04

Deuteranopia (green-blind)

#191503

Tritanopia (blue-blind)

#300004

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2b0404;
/* rgb */ color: rgb(43, 4, 4);
/* oklch */ color: oklch(19.1% 0.066 26.1);

Tailwind

colors: {
  custom: {
    50: '#674848',
    500: '#2b0404',
    950: '#000000',
  },
}

SCSS

$custom: #2b0404;
$custom-light: #674848;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0404",
  "rgb": {
    "r": 43,
    "g": 4,
    "b": 4
  },
  "hsl": {
    "h": 0,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.19055,
    "c": 0.06569,
    "h": 26.1
  },
  "luminance": 0.00609
}

Semantic roles & 50–950 ramp

primary

#2B0404

secondary

#1D6E6E

accent

#F9F92E

background

#F6F4F4

surface

#EBE6E6

border

#C6C2C2

text

#060000

muted

#7A7777

Preview Lab

Preview with #2B0404

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

Preview Lab → · Contrast checker → · Palette generator →