#B11C1A#B11C1A

#B11C1A is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.0% C 0.183 H 27.8°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#B11C1A
RGB	rgb(177, 28, 26)
HSL	hsl(1, 74%, 40%)
HSV	hsv(1, 85%, 69%)
CMYK	cmyk(0%, 84.2%, 85.3%, 30.6%)
CIE-LAB	lab(38.30, 56.95, 41.11)
CIE-LCH	lch(38.30, 70.24, 35.82°)
OKLab	oklab(49.01% 0.1622 0.0857)
OKLCH	oklch(49.01% 0.183 27.8)
XYZ	xyz(18.7356, 10.2553, 1.9701)
Luminance	0.1025 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B11C1A #1AAFB1

analogous

#B11A63 #B11C1A #B1681A

triadic

#B11C1A #1AB11C #1C1AB1

tetradic

#B11C1A #63B11A #1AAFB1 #681AB1

square

#B11C1A #63B11A #1AAFB1 #681AB1

split-complementary

#B11C1A #1AB168 #1A63B1

monochromatic

#460B0A #7C1412 #B11C1A #E02B29 #E7605E

Accessibility & contrast

On white

6.88

#B11C1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#B11C1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B11C1A

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B11C1A	#FFFFFF	#000000	##FFFFFF
##B11C1A	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4617

Deuteranopia (green-blind)

#726510

Tritanopia (blue-blind)

#C4001E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #b11c1a;
/* rgb */ color: rgb(177, 28, 26);
/* oklch */ color: oklch(49.0% 0.183 27.8);

Tailwind

colors: {
  custom: {
    50: '#d36a58',
    500: '#b11c1a',
    950: '#000000',
  },
}

SCSS

$custom: #b11c1a;
$custom-light: #d36a58;
$custom-dark: #000000;

JSON

{
  "hex": "#b11c1a",
  "rgb": {
    "r": 177,
    "g": 28,
    "b": 26
  },
  "hsl": {
    "h": 0.795,
    "s": 74.384,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4901,
    "c": 0.18342,
    "h": 27.8
  },
  "luminance": 0.10252
}

Semantic roles & 50–950 ramp

primary

#B11C1A

secondary

#5BCACB

accent

#EFF137

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #B11C1A

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

Preview Lab → · Contrast checker → · Palette generator →