#B41B1C#B41B1C

#B41B1C is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.5% C 0.187 H 27.3°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#B41B1C
RGB	rgb(180, 27, 28)
HSL	hsl(360, 74%, 41%)
HSV	hsv(360, 85%, 71%)
CMYK	cmyk(0%, 85%, 84.4%, 29.4%)
CIE-LAB	lab(38.85, 58.08, 40.80)
CIE-LCH	lch(38.85, 70.98, 35.09°)
OKLab	oklab(49.54% 0.1658 0.0855)
OKLCH	oklch(49.54% 0.187 27.3)
XYZ	xyz(19.4264, 10.5743, 2.1166)
Luminance	0.1057 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41B1C #1BB4B3

analogous

#B41B68 #B41B1C #B4661B

triadic

#B41B1C #1CB41B #1B1CB4

tetradic

#B41B1C #68B41B #1BB4B3 #661BB4

square

#B41B1C #68B41B #1BB4B3 #661BB4

split-complementary

#B41B1C #1BB466 #1B68B4

monochromatic

#4A0B0B #7F1314 #B41B1C #DF2D2E #E76263

Accessibility & contrast

On white

6.74

#B41B1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#B41B1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41B1C

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41B1C	#FFFFFF	#000000	##FFFFFF
##B41B1C	1.00	6.74	3.11	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4619

Deuteranopia (green-blind)

#746713

Tritanopia (blue-blind)

#C7001E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b41b1c;
/* rgb */ color: rgb(180, 27, 28);
/* oklch */ color: oklch(49.5% 0.187 27.3);

Tailwind

colors: {
  custom: {
    50: '#d56a5a',
    500: '#b41b1c',
    950: '#000000',
  },
}

SCSS

$custom: #b41b1c;
$custom-light: #d56a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b41b1c",
  "rgb": {
    "r": 180,
    "g": 27,
    "b": 28
  },
  "hsl": {
    "h": 359.608,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49536,
    "c": 0.18652,
    "h": 27.3
  },
  "luminance": 0.10571
}

Semantic roles & 50–950 ramp

primary

#B41B1C

secondary

#5FCCCB

accent

#F1EF37

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #B41B1C

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

Preview Lab → · Contrast checker → · Palette generator →