#2B100F#2B100F

#2B100F is a very dark, muted red. Relative luminance 0.009; OKLCH L 21.5% C 0.045 H 23.7°. Best body text is #FFFFFF at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B100F
RGB	rgb(43, 16, 15)
HSL	hsl(2, 48%, 11%)
HSV	hsv(2, 65%, 17%)
CMYK	cmyk(0%, 62.8%, 65.1%, 83.1%)
CIE-LAB	lab(8.30, 13.86, 6.26)
CIE-LCH	lch(8.30, 15.21, 24.31°)
OKLab	oklab(21.48% 0.0413 0.0182)
OKLCH	oklch(21.48% 0.045 23.7)
XYZ	xyz(1.2679, 0.9188, 0.5624)
Luminance	0.0092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B100F #0F2A2B

analogous

#2B0F1C #2B100F #2B1E0F

triadic

#2B100F #0F2B10 #100F2B

tetradic

#2B100F #1C2B0F #0F2A2B #1E0F2B

square

#2B100F #1C2B0F #0F2A2B #1E0F2B

split-complementary

#2B100F #0F2B1E #0F1C2B

monochromatic

#170808 #170808 #2B100F #58211F #86322F

Accessibility & contrast

On white

17.74

#2B100F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#2B100F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B100F

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B100F	#FFFFFF	#000000	##FFFFFF
##2B100F	1.00	17.74	1.18	17.74
#FFFFFF	17.74	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16150F

Deuteranopia (green-blind)

#1D1A0E

Tritanopia (blue-blind)

#300C10

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #2b100f;
/* rgb */ color: rgb(43, 16, 15);
/* oklch */ color: oklch(21.5% 0.045 23.7);

Tailwind

colors: {
  custom: {
    50: '#664f4e',
    500: '#2b100f',
    950: '#000000',
  },
}

SCSS

$custom: #2b100f;
$custom-light: #664f4e;
$custom-dark: #000000;

JSON

{
  "hex": "#2b100f",
  "rgb": {
    "r": 43,
    "g": 16,
    "b": 15
  },
  "hsl": {
    "h": 2.143,
    "s": 48.276,
    "l": 11.373
  },
  "oklch": {
    "l": 0.21475,
    "c": 0.04511,
    "h": 23.7
  },
  "luminance": 0.00919
}

Semantic roles & 50–950 ramp

primary

#2B100F

secondary

#326264

accent

#D3D850

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#060201

muted

#7A7877

Preview Lab

Preview with #2B100F

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

Preview Lab → · Contrast checker → · Palette generator →