#B53128#B53128

#B53128 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.6% C 0.170 H 28.5°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX#B53128
RGBrgb(181, 49, 40)
HSLhsl(4, 64%, 43%)
HSVhsv(4, 78%, 71%)
CMYKcmyk(0%, 72.9%, 77.9%, 29%)
CIE-LABlab(41.50, 52.22, 36.93)
CIE-LCHlch(41.50, 63.96, 35.27°)
OKLaboklab(51.57% 0.1496 0.0812)
OKLCHoklch(51.57% 0.17 28.5)
XYZxyz(20.5398, 12.1768, 3.2759)
Luminance0.1217 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B53128 #28ACB5
analogous
#B52865 #B53128 #B57728
triadic
#B53128 #28B531 #3128B5
tetradic
#B53128 #65B528 #28ACB5 #7728B5
square
#B53128 #65B528 #28ACB5 #7728B5
split-complementary
#B53128 #28B577 #2865B5
monochromatic
#511612 #83231D #B53128 #D64E44 #E17D77

Accessibility & contrast

On white

6.11
#B53128 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.43
#B53128 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53128
6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B53128#FFFFFF#000000##FFFFFF
##B531281.006.113.436.11
#FFFFFF6.111.0021.001.00
#0000003.4321.001.0021.00
##FFFFFF6.111.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584F26
Deuteranopia (green-blind)
#796C23
Tritanopia (blue-blind)
#C70030
Achromatopsia (no color)
#626262

Design tokens & code

CSS
--color: #b53128;
/* rgb */ color: rgb(181, 49, 40);
/* oklch */ color: oklch(51.6% 0.170 28.5);
Tailwind
colors: {
  custom: {
    50: '#d47363',
    500: '#b53128',
    950: '#000000',
  },
}
SCSS
$custom: #b53128;
$custom-light: #d47363;
$custom-dark: #000000;
JSON
{
  "hex": "#b53128",
  "rgb": {
    "r": 181,
    "g": 49,
    "b": 40
  },
  "hsl": {
    "h": 3.83,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51572,
    "c": 0.17022,
    "h": 28.5
  },
  "luminance": 0.12174
}

Semantic roles & 50–950 ramp

primary
#B53128
secondary
#70C3C8
accent
#DCE741
background
#FEF7F5
surface
#FCEDEA
border
#D5C8C6
text
#160905
muted
#847B79

Preview Lab

Preview with #B53128

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

Preview Lab → · Contrast checker → · Palette generator →

#B53128 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva