#B83A37#B83A37

#B83A37 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.163 H 25.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX#B83A37
RGBrgb(184, 58, 55)
HSLhsl(1, 54%, 47%)
HSVhsv(1, 70%, 72%)
CMYKcmyk(0%, 68.5%, 70.1%, 27.8%)
CIE-LABlab(43.50, 50.40, 30.67)
CIE-LCHlch(43.50, 59.00, 31.33°)
OKLaboklab(53.23% 0.1467 0.0707)
OKLCHoklch(53.23% 0.163 25.7)
XYZxyz(21.9722, 13.4955, 5.0616)
Luminance0.1349 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B83A37 #37B5B8
analogous
#B83775 #B83A37 #B87A37
triadic
#B83A37 #37B83A #3A37B8
tetradic
#B83A37 #75B837 #37B5B8 #7A37B8
square
#B83A37 #75B837 #37B5B8 #7A37B8
split-complementary
#B83A37 #37B87A #3775B8
monochromatic
#5A1C1B #892B29 #B83A37 #CF605D #DD8E8D

Accessibility & contrast

On white

5.68
#B83A37 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.70
#B83A37 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83A37
5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B83A37#FFFFFF#000000##FFFFFF
##B83A371.005.683.705.68
#FFFFFF5.681.0021.001.00
#0000003.7021.001.0021.00
##FFFFFF5.681.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D5536
Deuteranopia (green-blind)
#7D7133
Tritanopia (blue-blind)
#CA153B
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #b83a37;
/* rgb */ color: rgb(184, 58, 55);
/* oklch */ color: oklch(53.2% 0.163 25.7);
Tailwind
colors: {
  custom: {
    50: '#d5786e',
    500: '#b83a37',
    950: '#000000',
  },
}
SCSS
$custom: #b83a37;
$custom-light: #d5786e;
$custom-dark: #000000;
JSON
{
  "hex": "#b83a37",
  "rgb": {
    "r": 184,
    "g": 58,
    "b": 55
  },
  "hsl": {
    "h": 1.395,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53233,
    "c": 0.16285,
    "h": 25.7
  },
  "luminance": 0.13492
}

Semantic roles & 50–950 ramp

primary
#B83A37
secondary
#84C6C7
accent
#DADD4A
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160907
muted
#847B7A

Preview Lab

Preview with #B83A37

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

Preview Lab → · Contrast checker → · Palette generator →

#B83A37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva