#B11D1F#B11D1F

#B11D1F is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.1% C 0.182 H 26.7°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#B11D1F
RGB	rgb(177, 29, 31)
HSL	hsl(359, 72%, 40%)
HSV	hsv(359, 84%, 69%)
CMYK	cmyk(0%, 83.6%, 82.5%, 30.6%)
CIE-LAB	lab(38.42, 56.84, 38.56)
CIE-LCH	lch(38.42, 68.69, 34.15°)
OKLab	oklab(49.12% 0.1628 0.0821)
OKLCH	oklch(49.12% 0.182 26.7)
XYZ	xyz(18.8205, 10.3279, 2.2986)
Luminance	0.1032 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B11D1F #1DB1AF

analogous

#B11D69 #B11D1F #B1651D

triadic

#B11D1F #1FB11D #1D1FB1

tetradic

#B11D1F #69B11D #1DB1AF #651DB1

square

#B11D1F #69B11D #1DB1AF #651DB1

split-complementary

#B11D1F #1DB165 #1D69B1

monochromatic

#480C0D #7C1416 #B11D1F #DD2E31 #E56365

Accessibility & contrast

On white

6.85

#B11D1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#B11D1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B11D1F

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B11D1F	#FFFFFF	#000000	##FFFFFF
##B11D1F	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E461D

Deuteranopia (green-blind)

#726617

Tritanopia (blue-blind)

#C30020

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #b11d1f;
/* rgb */ color: rgb(177, 29, 31);
/* oklch */ color: oklch(49.1% 0.182 26.7);

Tailwind

colors: {
  custom: {
    50: '#d26a5c',
    500: '#b11d1f',
    950: '#000000',
  },
}

SCSS

$custom: #b11d1f;
$custom-light: #d26a5c;
$custom-dark: #000000;

JSON

{
  "hex": "#b11d1f",
  "rgb": {
    "r": 177,
    "g": 29,
    "b": 31
  },
  "hsl": {
    "h": 359.189,
    "s": 71.845,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49118,
    "c": 0.1823,
    "h": 26.7
  },
  "luminance": 0.10325
}

Semantic roles & 50–950 ramp

primary

#B11D1F

secondary

#60CAC9

accent

#EFEC39

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #B11D1F

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

Preview Lab → · Contrast checker → · Palette generator →