#B43733#B43733

#B43733 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.162 H 26.3°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX#B43733
RGBrgb(180, 55, 51)
HSLhsl(2, 56%, 45%)
HSVhsv(2, 72%, 71%)
CMYKcmyk(0%, 69.4%, 71.7%, 29.4%)
CIE-LABlab(42.27, 50.07, 31.41)
CIE-LCHlch(42.27, 59.11, 32.10°)
OKLaboklab(52.16% 0.1453 0.0718)
OKLCHoklch(52.16% 0.162 26.3)
XYZxyz(20.7884, 12.6778, 4.4837)
Luminance0.1268 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B43733 #33B0B4
analogous
#B43370 #B43733 #B47733
triadic
#B43733 #33B437 #3733B4
tetradic
#B43733 #70B433 #33B0B4 #7733B4
square
#B43733 #70B433 #33B0B4 #7733B4
split-complementary
#B43733 #33B477 #3370B4
monochromatic
#551A18 #842825 #B43733 #CF5955 #DC8885

Accessibility & contrast

On white

5.94
#B43733 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.54
#B43733 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43733
5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B43733#FFFFFF#000000##FFFFFF
##B437331.005.943.545.94
#FFFFFF5.941.0021.001.00
#0000003.5421.001.0021.00
##FFFFFF5.941.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5A5331
Deuteranopia (green-blind)
#7A6E2F
Tritanopia (blue-blind)
#C60F37
Achromatopsia (no color)
#646464

Design tokens & code

CSS
--color: #b43733;
/* rgb */ color: rgb(180, 55, 51);
/* oklch */ color: oklch(52.2% 0.162 26.3);
Tailwind
colors: {
  custom: {
    50: '#d2766b',
    500: '#b43733',
    950: '#000000',
  },
}
SCSS
$custom: #b43733;
$custom-light: #d2766b;
$custom-dark: #000000;
JSON
{
  "hex": "#b43733",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.86,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52162,
    "c": 0.16208,
    "h": 26.3
  },
  "luminance": 0.12675
}

Semantic roles & 50–950 ramp

primary
#B43733
secondary
#7DC4C6
accent
#DADF49
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160906
muted
#847B7A

Preview Lab

Preview with #B43733

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

Preview Lab → · Contrast checker → · Palette generator →

#B43733 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva