#2B0303#2B0303

#2B0303 is a very dark, moderate red. Relative luminance 0.006; OKLCH L 18.8% C 0.068 H 26.7°. Best body text is #FFFFFF at 18.80:1 contrast (WCAG AA passes).

Color values

HEX	#2B0303
RGB	rgb(43, 3, 3)
HSL	hsl(0, 87%, 9%)
HSV	hsv(0, 93%, 17%)
CMYK	cmyk(0%, 93%, 93%, 83.1%)
CIE-LAB	lab(5.29, 19.43, 7.06)
CIE-LCH	lch(5.29, 20.67, 19.96°)
OKLab	oklab(18.84% 0.0605 0.0305)
OKLCH	oklch(18.84% 0.068 26.7)
XYZ	xyz(1.0454, 0.5855, 0.1441)
Luminance	0.0059 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0303 #032B2B

analogous

#2B0317 #2B0303 #2B1703

triadic

#2B0303 #032B03 #03032B

tetradic

#2B0303 #172B03 #032B2B #17032B

square

#2B0303 #172B03 #032B2B #17032B

split-complementary

#2B0303 #032B17 #03172B

monochromatic

#1D0202 #1D0202 #2B0303 #640707 #9D0B0B

Accessibility & contrast

On white

18.80

#2B0303 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#2B0303 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0303

18.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0303	#FFFFFF	#000000	##FFFFFF
##2B0303	1.00	18.80	1.12	18.80
#FFFFFF	18.80	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0C03

Deuteranopia (green-blind)

#191502

Tritanopia (blue-blind)

#300003

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2b0303;
/* rgb */ color: rgb(43, 3, 3);
/* oklch */ color: oklch(18.8% 0.068 26.7);

Tailwind

colors: {
  custom: {
    50: '#674748',
    500: '#2b0303',
    950: '#000000',
  },
}

SCSS

$custom: #2b0303;
$custom-light: #674748;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0303",
  "rgb": {
    "r": 43,
    "g": 3,
    "b": 3
  },
  "hsl": {
    "h": 0,
    "s": 86.957,
    "l": 9.02
  },
  "oklch": {
    "l": 0.18838,
    "c": 0.06773,
    "h": 26.7
  },
  "luminance": 0.00585
}

Semantic roles & 50–950 ramp

primary

#2B0303

secondary

#1B6F6F

accent

#FDFD2B

background

#F6F4F4

surface

#EBE6E6

border

#C6C2C2

text

#060000

muted

#7A7777

Preview Lab

Preview with #2B0303

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

Preview Lab → · Contrast checker → · Palette generator →