#B41B37#B41B37

#B41B37 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.9% C 0.185 H 18.6°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#B41B37
RGB	rgb(180, 27, 55)
HSL	hsl(349, 74%, 41%)
HSV	hsv(349, 85%, 71%)
CMYK	cmyk(0%, 85%, 69.4%, 29.4%)
CIE-LAB	lab(39.18, 59.07, 25.27)
CIE-LCH	lch(39.18, 64.25, 23.16°)
OKLab	oklab(49.89% 0.1748 0.0589)
OKLCH	oklch(49.89% 0.185 18.6)
XYZ	xyz(19.9062, 10.7662, 4.6436)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41B37 #1BB498

analogous

#B41B83 #B41B37 #B44C1B

triadic

#B41B37 #37B41B #1B37B4

tetradic

#B41B37 #83B41B #1BB498 #4C1BB4

square

#B41B37 #83B41B #1BB498 #4C1BB4

split-complementary

#B41B37 #1BB44C #1B83B4

monochromatic

#4A0B16 #7F1327 #B41B37 #DF2D4D #E7627A

Accessibility & contrast

On white

6.66

#B41B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#B41B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41B37

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41B37	#FFFFFF	#000000	##FFFFFF
##B41B37	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4837

Deuteranopia (green-blind)

#726732

Tritanopia (blue-blind)

#C60028

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b41b37;
/* rgb */ color: rgb(180, 27, 55);
/* oklch */ color: oklch(49.9% 0.185 18.6);

Tailwind

colors: {
  custom: {
    50: '#d36a6d',
    500: '#b41b37',
    950: '#000000',
  },
}

SCSS

$custom: #b41b37;
$custom-light: #d36a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b41b37",
  "rgb": {
    "r": 180,
    "g": 27,
    "b": 55
  },
  "hsl": {
    "h": 349.02,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49885,
    "c": 0.18451,
    "h": 18.6
  },
  "luminance": 0.10763
}

Semantic roles & 50–950 ramp

primary

#B41B37

secondary

#5FCCB8

accent

#F1CF37

background

#FEF6F6

surface

#FCECEB

border

#D5C7C6

text

#160807

muted

#847A7A

Preview Lab

Preview with #B41B37

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

Preview Lab → · Contrast checker → · Palette generator →