#B41831#B41831

#B41831 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.6% C 0.186 H 20.5°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#B41831
RGB	rgb(180, 24, 49)
HSL	hsl(350, 76%, 40%)
HSV	hsv(350, 87%, 71%)
CMYK	cmyk(0%, 86.7%, 72.8%, 29.4%)
CIE-LAB	lab(38.87, 59.44, 28.61)
CIE-LCH	lch(38.87, 65.97, 25.71°)
OKLab	oklab(49.62% 0.1746 0.0653)
OKLCH	oklch(49.62% 0.186 20.5)
XYZ	xyz(19.7058, 10.5815, 3.9100)
Luminance	0.1058 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41831 #18B49B

analogous

#B4187F #B41831 #B44D18

triadic

#B41831 #31B418 #1831B4

tetradic

#B41831 #7FB418 #18B49B #4D18B4

square

#B41831 #7FB418 #18B49B #4D18B4

split-complementary

#B41831 #18B44D #187FB4

monochromatic

#480A14 #7E1122 #B41831 #E22745 #E95D73

Accessibility & contrast

On white

6.74

#B41831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B41831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41831

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41831	#FFFFFF	#000000	##FFFFFF
##B41831	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4730

Deuteranopia (green-blind)

#72672C

Tritanopia (blue-blind)

#C60024

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b41831;
/* rgb */ color: rgb(180, 24, 49);
/* oklch */ color: oklch(49.6% 0.186 20.5);

Tailwind

colors: {
  custom: {
    50: '#d46969',
    500: '#b41831',
    950: '#000000',
  },
}

SCSS

$custom: #b41831;
$custom-light: #d46969;
$custom-dark: #000000;

JSON

{
  "hex": "#b41831",
  "rgb": {
    "r": 180,
    "g": 24,
    "b": 49
  },
  "hsl": {
    "h": 350.385,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.49621,
    "c": 0.18645,
    "h": 20.5
  },
  "luminance": 0.10578
}

Semantic roles & 50–950 ramp

primary

#B41831

secondary

#5BCDBB

accent

#F3D535

background

#FEF6F6

surface

#FCECEB

border

#D5C7C6

text

#160706

muted

#847A7A

Preview Lab

Preview with #B41831

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

Preview Lab → · Contrast checker → · Palette generator →