#B41737#B41737

#B41737 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.7% C 0.187 H 18.1°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#B41737
RGB	rgb(180, 23, 55)
HSL	hsl(348, 77%, 40%)
HSV	hsv(348, 87%, 71%)
CMYK	cmyk(0%, 87.2%, 69.4%, 29.4%)
CIE-LAB	lab(38.89, 59.91, 24.91)
CIE-LCH	lch(38.89, 64.88, 22.57°)
OKLab	oklab(49.67% 0.1775 0.0581)
OKLCH	oklch(49.67% 0.187 18.1)
XYZ	xyz(19.8207, 10.5951, 4.6151)
Luminance	0.1059 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41737 #17B494

analogous

#B41785 #B41737 #B44617

triadic

#B41737 #37B417 #1737B4

tetradic

#B41737 #85B417 #17B494 #4617B4

square

#B41737 #85B417 #17B494 #4617B4

split-complementary

#B41737 #17B446 #1785B4

monochromatic

#470916 #7E1026 #B41737 #E3254C #EA5B78

Accessibility & contrast

On white

6.73

#B41737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B41737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41737

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41737	#FFFFFF	#000000	##FFFFFF
##B41737	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4737

Deuteranopia (green-blind)

#716732

Tritanopia (blue-blind)

#C60026

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b41737;
/* rgb */ color: rgb(180, 23, 55);
/* oklch */ color: oklch(49.7% 0.187 18.1);

Tailwind

colors: {
  custom: {
    50: '#d3696d',
    500: '#b41737',
    950: '#000000',
  },
}

SCSS

$custom: #b41737;
$custom-light: #d3696d;
$custom-dark: #000000;

JSON

{
  "hex": "#b41737",
  "rgb": {
    "r": 180,
    "g": 23,
    "b": 55
  },
  "hsl": {
    "h": 347.771,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49668,
    "c": 0.18681,
    "h": 18.1
  },
  "luminance": 0.10592
}

Semantic roles & 50–950 ramp

primary

#B41737

secondary

#59CEB6

accent

#F4CD34

background

#FEF6F6

surface

#FCECEB

border

#D5C7C6

text

#160707

muted

#847A7A

Preview Lab

Preview with #B41737

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

Preview Lab → · Contrast checker → · Palette generator →