#2B040B#2B040B

#2B040B is a very dark, moderate red. Relative luminance 0.006; OKLCH L 19.2% C 0.065 H 14.2°. Best body text is #FFFFFF at 18.67:1 contrast (WCAG AA passes).

Color values

HEX	#2B040B
RGB	rgb(43, 4, 11)
HSL	hsl(349, 83%, 9%)
HSV	hsv(349, 91%, 17%)
CMYK	cmyk(0%, 90.7%, 74.4%, 83.1%)
CIE-LAB	lab(5.64, 19.82, 4.31)
CIE-LCH	lch(5.64, 20.28, 12.26°)
OKLab	oklab(19.24% 0.0632 0.016)
OKLCH	oklch(19.24% 0.065 14.2)
XYZ	xyz(1.1002, 0.6247, 0.3792)
Luminance	0.0063 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B040B #042B24

analogous

#2B041F #2B040B #2B1104

triadic

#2B040B #0B2B04 #040B2B

tetradic

#2B040B #1F2B04 #042B24 #11042B

square

#2B040B #1F2B04 #042B24 #11042B

split-complementary

#2B040B #042B11 #041F2B

monochromatic

#1C0307 #1C0307 #2B040B #630919 #9B0E28

Accessibility & contrast

On white

18.67

#2B040B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#2B040B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B040B

18.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B040B	#FFFFFF	#000000	##FFFFFF
##2B040B	1.00	18.67	1.13	18.67
#FFFFFF	18.67	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0D0B

Deuteranopia (green-blind)

#18150A

Tritanopia (blue-blind)

#300006

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #2b040b;
/* rgb */ color: rgb(43, 4, 11);
/* oklch */ color: oklch(19.2% 0.065 14.2);

Tailwind

colors: {
  custom: {
    50: '#67484c',
    500: '#2b040b',
    950: '#000000',
  },
}

SCSS

$custom: #2b040b;
$custom-light: #67484c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b040b",
  "rgb": {
    "r": 43,
    "g": 4,
    "b": 11
  },
  "hsl": {
    "h": 349.231,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.19243,
    "c": 0.06516,
    "h": 14.2
  },
  "luminance": 0.00625
}

Semantic roles & 50–950 ramp

primary

#2B040B

secondary

#1D6E5F

accent

#F9D52E

background

#F6F4F4

surface

#EBE6E7

border

#C6C2C3

text

#060001

muted

#7A7777

Preview Lab

Preview with #2B040B

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

Preview Lab → · Contrast checker → · Palette generator →