#B41739#B41739

#B41739 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.7% C 0.187 H 17.3°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#B41739
RGB	rgb(180, 23, 57)
HSL	hsl(347, 77%, 40%)
HSV	hsv(347, 87%, 71%)
CMYK	cmyk(0%, 87.2%, 68.3%, 29.4%)
CIE-LAB	lab(38.92, 60.01, 23.69)
CIE-LCH	lch(38.92, 64.51, 21.54°)
OKLab	oklab(49.7% 0.1783 0.0557)
OKLCH	oklch(49.7% 0.187 17.3)
XYZ	xyz(19.8696, 10.6147, 4.8727)
Luminance	0.1061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41739 #17B492

analogous

#B41788 #B41739 #B44317

triadic

#B41739 #39B417 #1739B4

tetradic

#B41739 #88B417 #17B492 #4317B4

square

#B41739 #88B417 #17B492 #4317B4

split-complementary

#B41739 #17B443 #1788B4

monochromatic

#470917 #7E1028 #B41739 #E3254E #EA5B7A

Accessibility & contrast

On white

6.73

#B41739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B41739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41739

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41739	#FFFFFF	#000000	##FFFFFF
##B41739	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)

#4B4739

Deuteranopia (green-blind)

#716734

Tritanopia (blue-blind)

#C60027

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b41739;
/* rgb */ color: rgb(180, 23, 57);
/* oklch */ color: oklch(49.7% 0.187 17.3);

Tailwind

colors: {
  custom: {
    50: '#d3696f',
    500: '#b41739',
    950: '#000000',
  },
}

SCSS

$custom: #b41739;
$custom-light: #d3696f;
$custom-dark: #000000;

JSON

{
  "hex": "#b41739",
  "rgb": {
    "r": 180,
    "g": 23,
    "b": 57
  },
  "hsl": {
    "h": 347.006,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49704,
    "c": 0.18682,
    "h": 17.3
  },
  "luminance": 0.10611
}

Semantic roles & 50–950 ramp

primary

#B41739

secondary

#59CEB4

accent

#F4CA34

background

#FEF6F6

surface

#FCECEC

border

#D5C7C7

text

#160707

muted

#847A7A

Preview Lab

Preview with #B41739

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

Preview Lab → · Contrast checker → · Palette generator →