#2B100C#2B100C

#2B100C is a very dark, muted red. Relative luminance 0.009; OKLCH L 21.4% C 0.046 H 30.0°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#2B100C
RGB	rgb(43, 16, 12)
HSL	hsl(8, 56%, 11%)
HSV	hsv(8, 72%, 17%)
CMYK	cmyk(0%, 62.8%, 72.1%, 83.1%)
CIE-LAB	lab(8.23, 13.54, 7.63)
CIE-LCH	lch(8.23, 15.54, 29.42°)
OKLab	oklab(21.4% 0.0397 0.023)
OKLCH	oklch(21.4% 0.046 30)
XYZ	xyz(1.2480, 0.9109, 0.4578)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B100C #0C272B

analogous

#2B0C17 #2B100C #2B1F0C

triadic

#2B100C #0C2B10 #100C2B

tetradic

#2B100C #172B0C #0C272B #1F0C2B

square

#2B100C #172B0C #0C272B #1F0C2B

split-complementary

#2B100C #0C2B1F #0C172B

monochromatic

#180907 #180907 #2B100C #5B2219 #8B3427

Accessibility & contrast

On white

17.76

#2B100C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#2B100C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B100C

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B100C	#FFFFFF	#000000	##FFFFFF
##2B100C	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17140C

Deuteranopia (green-blind)

#1D1A0B

Tritanopia (blue-blind)

#300B0F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #2b100c;
/* rgb */ color: rgb(43, 16, 12);
/* oklch */ color: oklch(21.4% 0.046 30.0);

Tailwind

colors: {
  custom: {
    50: '#664f4c',
    500: '#2b100c',
    950: '#000000',
  },
}

SCSS

$custom: #2b100c;
$custom-light: #664f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b100c",
  "rgb": {
    "r": 43,
    "g": 16,
    "b": 12
  },
  "hsl": {
    "h": 7.742,
    "s": 56.364,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21398,
    "c": 0.04589,
    "h": 30
  },
  "luminance": 0.00911
}

Semantic roles & 50–950 ramp

primary

#2B100C

secondary

#2C5F66

accent

#CCE048

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#060101

muted

#7A7777

Preview Lab

Preview with #2B100C

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

Preview Lab → · Contrast checker → · Palette generator →