#B41537#B41537

#B41537 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.6% C 0.188 H 17.9°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#B41537
RGB	rgb(180, 21, 55)
HSL	hsl(347, 79%, 39%)
HSV	hsv(347, 88%, 71%)
CMYK	cmyk(0%, 88.3%, 69.4%, 29.4%)
CIE-LAB	lab(38.76, 60.29, 24.74)
CIE-LCH	lch(38.76, 65.17, 22.31°)
OKLab	oklab(49.57% 0.1788 0.0578)
OKLCH	oklch(49.57% 0.188 17.9)
XYZ	xyz(19.7825, 10.5187, 4.6024)
Luminance	0.1051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41537 #15B492

analogous

#B41587 #B41537 #B44315

triadic

#B41537 #37B415 #1537B4

tetradic

#B41537 #87B415 #15B492 #4315B4

square

#B41537 #87B415 #15B492 #4315B4

split-complementary

#B41537 #15B443 #1587B4

monochromatic

#460816 #7D0F26 #B41537 #E5214B #EC5877

Accessibility & contrast

On white

6.77

#B41537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#B41537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41537

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41537	#FFFFFF	#000000	##FFFFFF
##B41537	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4637

Deuteranopia (green-blind)

#716732

Tritanopia (blue-blind)

#C60026

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b41537;
/* rgb */ color: rgb(180, 21, 55);
/* oklch */ color: oklch(49.6% 0.188 17.9);

Tailwind

colors: {
  custom: {
    50: '#d3696d',
    500: '#b41537',
    950: '#000000',
  },
}

SCSS

$custom: #b41537;
$custom-light: #d3696d;
$custom-dark: #000000;

JSON

{
  "hex": "#b41537",
  "rgb": {
    "r": 180,
    "g": 21,
    "b": 55
  },
  "hsl": {
    "h": 347.17,
    "s": 79.104,
    "l": 39.412
  },
  "oklch": {
    "l": 0.49571,
    "c": 0.18787,
    "h": 17.9
  },
  "luminance": 0.10515
}

Semantic roles & 50–950 ramp

primary

#B41537

secondary

#56CFB5

accent

#F6CC32

background

#FEF6F6

surface

#FCECEB

border

#D5C7C6

text

#160707

muted

#847A7A

Preview Lab

Preview with #B41537

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

Preview Lab → · Contrast checker → · Palette generator →