#2B0104#2B0104

#2B0104 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 18.5% C 0.071 H 22.2°. Best body text is #FFFFFF at 18.94:1 contrast (WCAG AA passes).

Color values

HEX	#2B0104
RGB	rgb(43, 1, 4)
HSL	hsl(356, 95%, 9%)
HSV	hsv(356, 98%, 17%)
CMYK	cmyk(0%, 97.7%, 90.7%, 83.1%)
CIE-LAB	lab(4.92, 20.46, 6.11)
CIE-LCH	lch(4.92, 21.35, 16.61°)
OKLab	oklab(18.47% 0.0661 0.027)
OKLCH	oklch(18.47% 0.071 22.2)
XYZ	xyz(1.0292, 0.5442, 0.1657)
Luminance	0.0054 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B0104 #012B28

analogous

#2B0119 #2B0104 #2B1301

triadic

#2B0104 #042B01 #01042B

tetradic

#2B0104 #192B01 #012B28 #13012B

square

#2B0104 #192B01 #012B28 #13012B

split-complementary

#2B0104 #012B13 #01192B

monochromatic

#1E0103 #1E0103 #2B0104 #67020A #A3040F

Accessibility & contrast

On white

18.94

#2B0104 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#2B0104 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B0104

18.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B0104	#FFFFFF	#000000	##FFFFFF
##2B0104	1.00	18.94	1.11	18.94
#FFFFFF	18.94	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C0A04

Deuteranopia (green-blind)

#181403

Tritanopia (blue-blind)

#300002

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #2b0104;
/* rgb */ color: rgb(43, 1, 4);
/* oklch */ color: oklch(18.5% 0.071 22.2);

Tailwind

colors: {
  custom: {
    50: '#674648',
    500: '#2b0104',
    950: '#000000',
  },
}

SCSS

$custom: #2b0104;
$custom-light: #674648;
$custom-dark: #000000;

JSON

{
  "hex": "#2b0104",
  "rgb": {
    "r": 43,
    "g": 1,
    "b": 4
  },
  "hsl": {
    "h": 355.714,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18474,
    "c": 0.07136,
    "h": 22.2
  },
  "luminance": 0.00544
}

Semantic roles & 50–950 ramp

primary

#2B0104

secondary

#17716B

accent

#FFF029

background

#F6F3F4

surface

#EBE5E6

border

#C6C1C2

text

#060000

muted

#7A7677

Preview Lab

Preview with #2B0104

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

Preview Lab → · Contrast checker → · Palette generator →