#B11F1D#B11F1D

#B11F1D is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.2% C 0.181 H 27.6°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#B11F1D
RGB	rgb(177, 31, 29)
HSL	hsl(1, 72%, 40%)
HSV	hsv(1, 84%, 69%)
CMYK	cmyk(0%, 82.5%, 83.6%, 30.6%)
CIE-LAB	lab(38.58, 56.28, 39.80)
CIE-LCH	lch(38.58, 68.93, 35.26°)
OKLab	oklab(49.23% 0.1606 0.084)
OKLCH	oklch(49.23% 0.181 27.6)
XYZ	xyz(18.8456, 10.4189, 2.1809)
Luminance	0.1042 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B11F1D #1DAFB1

analogous

#B11D65 #B11F1D #B1691D

triadic

#B11F1D #1DB11F #1F1DB1

tetradic

#B11F1D #65B11D #1DAFB1 #691DB1

square

#B11F1D #65B11D #1DAFB1 #691DB1

split-complementary

#B11F1D #1DB169 #1D65B1

monochromatic

#480D0C #7C1614 #B11F1D #DD312E #E56563

Accessibility & contrast

On white

6.81

#B11F1D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#B11F1D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B11F1D

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B11F1D	#FFFFFF	#000000	##FFFFFF
##B11F1D	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F471A

Deuteranopia (green-blind)

#736615

Tritanopia (blue-blind)

#C30021

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b11f1d;
/* rgb */ color: rgb(177, 31, 29);
/* oklch */ color: oklch(49.2% 0.181 27.6);

Tailwind

colors: {
  custom: {
    50: '#d26b5b',
    500: '#b11f1d',
    950: '#000000',
  },
}

SCSS

$custom: #b11f1d;
$custom-light: #d26b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b11f1d",
  "rgb": {
    "r": 177,
    "g": 31,
    "b": 29
  },
  "hsl": {
    "h": 0.811,
    "s": 71.845,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4923,
    "c": 0.18128,
    "h": 27.6
  },
  "luminance": 0.10416
}

Semantic roles & 50–950 ramp

primary

#B11F1D

secondary

#60C9CA

accent

#ECEF39

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #B11F1D

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

Preview Lab → · Contrast checker → · Palette generator →