#2B0505#2B0505

#2B0505 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 19.3% C 0.064 H 25.5°. Best body text is #FFFFFF at 18.64:1 contrast (WCAG AA passes).

Color values

HEX	#2B0505
RGB	rgb(43, 5, 5)
HSL	hsl(0, 79%, 9%)
HSV	hsv(0, 88%, 17%)
CMYK	cmyk(0%, 88.4%, 88.4%, 83.1%)
CIE-LAB	lab(5.72, 18.72, 6.87)
CIE-LCH	lch(5.72, 19.94, 20.17°)
OKLab	oklab(19.27% 0.0575 0.0274)
OKLCH	oklch(19.27% 0.064 25.5)
XYZ	xyz(1.0780, 0.6333, 0.2090)
Luminance	0.0063 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0505 #052B2B

analogous

#2B0518 #2B0505 #2B1805

triadic

#2B0505 #052B05 #05052B

tetradic

#2B0505 #182B05 #052B2B #18052B

square

#2B0505 #182B05 #052B2B #18052B

split-complementary

#2B0505 #052B18 #05182B

monochromatic

#1B0303 #1B0303 #2B0505 #620B0B #991212

Accessibility & contrast

On white

18.64

#2B0505 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#2B0505 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0505

18.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0505	#FFFFFF	#000000	##FFFFFF
##2B0505	1.00	18.64	1.13	18.64
#FFFFFF	18.64	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0D05

Deuteranopia (green-blind)

#191604

Tritanopia (blue-blind)

#300005

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #2b0505;
/* rgb */ color: rgb(43, 5, 5);
/* oklch */ color: oklch(19.3% 0.064 25.5);

Tailwind

colors: {
  custom: {
    50: '#674849',
    500: '#2b0505',
    950: '#000000',
  },
}

SCSS

$custom: #2b0505;
$custom-light: #674849;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0505",
  "rgb": {
    "r": 43,
    "g": 5,
    "b": 5
  },
  "hsl": {
    "h": 0,
    "s": 79.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.19266,
    "c": 0.06373,
    "h": 25.5
  },
  "luminance": 0.00633
}

Semantic roles & 50–950 ramp

primary

#2B0505

secondary

#1F6D6D

accent

#F6F632

background

#F6F4F4

surface

#EBE6E6

border

#C6C2C2

text

#060000

muted

#7A7777

Preview Lab

Preview with #2B0505

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

Preview Lab → · Contrast checker → · Palette generator →