#B11D1C#B11D1C

#B11D1C is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.1% C 0.183 H 27.5°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#B11D1C
RGB	rgb(177, 29, 28)
HSL	hsl(0, 73%, 40%)
HSV	hsv(0, 84%, 69%)
CMYK	cmyk(0%, 83.6%, 84.2%, 30.6%)
CIE-LAB	lab(38.40, 56.76, 40.15)
CIE-LCH	lch(38.40, 69.53, 35.28°)
OKLab	oklab(49.09% 0.162 0.0844)
OKLCH	oklch(49.09% 0.183 27.5)
XYZ	xyz(18.7828, 10.3128, 2.1000)
Luminance	0.1031 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B11D1C #1CB0B1

analogous

#B11C65 #B11D1C #B1681C

triadic

#B11D1C #1CB11D #1D1CB1

tetradic

#B11D1C #65B11C #1CB0B1 #681CB1

square

#B11D1C #65B11C #1CB0B1 #681CB1

split-complementary

#B11D1C #1CB168 #1C65B1

monochromatic

#470C0B #7C1414 #B11D1C #DE2E2C #E66261

Accessibility & contrast

On white

6.86

#B11D1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#B11D1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B11D1C

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B11D1C	#FFFFFF	#000000	##FFFFFF
##B11D1C	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4619

Deuteranopia (green-blind)

#726613

Tritanopia (blue-blind)

#C40020

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #b11d1c;
/* rgb */ color: rgb(177, 29, 28);
/* oklch */ color: oklch(49.1% 0.183 27.5);

Tailwind

colors: {
  custom: {
    50: '#d26a5a',
    500: '#b11d1c',
    950: '#000000',
  },
}

SCSS

$custom: #b11d1c;
$custom-light: #d26a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b11d1c",
  "rgb": {
    "r": 177,
    "g": 29,
    "b": 28
  },
  "hsl": {
    "h": 0.403,
    "s": 72.683,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4909,
    "c": 0.18262,
    "h": 27.5
  },
  "luminance": 0.1031
}

Semantic roles & 50–950 ramp

primary

#B11D1C

secondary

#5ECACB

accent

#EEEF38

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #B11D1C

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

Preview Lab → · Contrast checker → · Palette generator →