#B43437#B43437

#B43437 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.164 H 23.8°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX#B43437
RGBrgb(180, 52, 55)
HSLhsl(359, 55%, 45%)
HSVhsv(359, 71%, 71%)
CMYKcmyk(0%, 71.1%, 69.4%, 29.4%)
CIE-LABlab(41.90, 51.44, 28.59)
CIE-LCHlch(41.90, 58.85, 29.06°)
OKLaboklab(51.9% 0.1505 0.0663)
OKLCHoklch(51.9% 0.164 23.8)
XYZxyz(20.7422, 12.4382, 4.9223)
Luminance0.1244 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B43437 #34B4B1
analogous
#B43477 #B43437 #B47134
triadic
#B43437 #37B434 #3437B4
tetradic
#B43437 #77B434 #34B4B1 #7134B4
square
#B43437 #77B434 #34B4B1 #7134B4
split-complementary
#B43437 #34B471 #3477B4
monochromatic
#55191A #852628 #B43437 #CE575A #DC8688

Accessibility & contrast

On white

6.02
#B43437 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.49
#B43437 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43437
6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B43437#FFFFFF#000000##FFFFFF
##B434371.006.023.496.02
#FFFFFF6.021.0021.001.00
#0000003.4921.001.0021.00
##FFFFFF6.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#585136
Deuteranopia (green-blind)
#786D33
Tritanopia (blue-blind)
#C60636
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #b43437;
/* rgb */ color: rgb(180, 52, 55);
/* oklch */ color: oklch(51.9% 0.164 23.8);
Tailwind
colors: {
  custom: {
    50: '#d2746e',
    500: '#b43437',
    950: '#000000',
  },
}
SCSS
$custom: #b43437;
$custom-light: #d2746e;
$custom-dark: #000000;
JSON
{
  "hex": "#b43437",
  "rgb": {
    "r": 180,
    "g": 52,
    "b": 55
  },
  "hsl": {
    "h": 358.594,
    "s": 55.172,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51904,
    "c": 0.16445,
    "h": 23.8
  },
  "luminance": 0.12435
}

Semantic roles & 50–950 ramp

primary
#B43437
secondary
#7EC6C4
accent
#DFDB49
background
#FDF7F6
surface
#FBEDEB
border
#D4C8C6
text
#160907
muted
#847B7A

Preview Lab

Preview with #B43437

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

Preview Lab → · Contrast checker → · Palette generator →

#B43437 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva