#2B100E#2B100E

#2B100E is a very dark, muted red. Relative luminance 0.009; OKLCH L 21.4% C 0.045 H 25.9°. Best body text is #FFFFFF at 17.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B100E
RGB	rgb(43, 16, 14)
HSL	hsl(4, 51%, 11%)
HSV	hsv(4, 67%, 17%)
CMYK	cmyk(0%, 62.8%, 67.4%, 83.1%)
CIE-LAB	lab(8.27, 13.75, 6.74)
CIE-LCH	lch(8.27, 15.31, 26.12°)
OKLab	oklab(21.45% 0.0408 0.0198)
OKLCH	oklch(21.45% 0.045 25.9)
XYZ	xyz(1.2609, 0.9160, 0.5258)
Luminance	0.0092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B100E #0E292B

analogous

#2B0E1A #2B100E #2B1E0E

triadic

#2B100E #0E2B10 #100E2B

tetradic

#2B100E #1A2B0E #0E292B #1E0E2B

square

#2B100E #1A2B0E #0E292B #1E0E2B

split-complementary

#2B100E #0E2B1E #0E1A2B

monochromatic

#170908 #170908 #2B100E #59211D #87322C

Accessibility & contrast

On white

17.75

#2B100E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#2B100E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B100E

17.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B100E	#FFFFFF	#000000	##FFFFFF
##2B100E	1.00	17.75	1.18	17.75
#FFFFFF	17.75	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16150E

Deuteranopia (green-blind)

#1D1A0D

Tritanopia (blue-blind)

#300C10

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #2b100e;
/* rgb */ color: rgb(43, 16, 14);
/* oklch */ color: oklch(21.4% 0.045 25.9);

Tailwind

colors: {
  custom: {
    50: '#664f4d',
    500: '#2b100e',
    950: '#000000',
  },
}

SCSS

$custom: #2b100e;
$custom-light: #664f4d;
$custom-dark: #000000;

JSON

{
  "hex": "#2b100e",
  "rgb": {
    "r": 43,
    "g": 16,
    "b": 14
  },
  "hsl": {
    "h": 4.138,
    "s": 50.877,
    "l": 11.176
  },
  "oklch": {
    "l": 0.21448,
    "c": 0.04532,
    "h": 25.9
  },
  "luminance": 0.00916
}

Semantic roles & 50–950 ramp

primary

#2B100E

secondary

#306165

accent

#D1DA4D

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#060201

muted

#7A7877

Preview Lab

Preview with #2B100E

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

Preview Lab → · Contrast checker → · Palette generator →