#B33D28#B33D28

#B33D28 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.157 H 32.4°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX#B33D28
RGBrgb(179, 61, 40)
HSLhsl(9, 63%, 43%)
HSVhsv(9, 78%, 70%)
CMYKcmyk(0%, 65.9%, 77.7%, 29.8%)
CIE-LABlab(42.88, 46.76, 38.26)
CIE-LCHlch(42.88, 60.42, 39.29°)
OKLaboklab(52.54% 0.1328 0.0842)
OKLCHoklch(52.54% 0.157 32.4)
XYZxyz(20.6445, 13.0774, 3.4442)
Luminance0.1307 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B33D28 #289EB3
analogous
#B32858 #B33D28 #B38228
triadic
#B33D28 #28B33D #3D28B3
tetradic
#B33D28 #58B328 #289EB3 #8228B3
square
#B33D28 #58B328 #289EB3 #8228B3
split-complementary
#B33D28 #28B382 #2858B3
monochromatic
#4F1B12 #812C1D #B33D28 #D55943 #E08575

Accessibility & contrast

On white

5.81
#B33D28 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.61
#B33D28 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D28
5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B33D28#FFFFFF#000000##FFFFFF
##B33D281.005.813.615.81
#FFFFFF5.811.0021.001.00
#0000003.6121.001.0021.00
##FFFFFF5.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5F5525
Deuteranopia (green-blind)
#7C6F24
Tritanopia (blue-blind)
#C51B39
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #b33d28;
/* rgb */ color: rgb(179, 61, 40);
/* oklch */ color: oklch(52.5% 0.157 32.4);
Tailwind
colors: {
  custom: {
    50: '#d27863',
    500: '#b33d28',
    950: '#000000',
  },
}
SCSS
$custom: #b33d28;
$custom-light: #d27863;
$custom-dark: #000000;
JSON
{
  "hex": "#b33d28",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 40
  },
  "hsl": {
    "h": 9.065,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52541,
    "c": 0.15725,
    "h": 32.4
  },
  "luminance": 0.13074
}

Semantic roles & 50–950 ramp

primary
#B33D28
secondary
#6FBAC8
accent
#CEE641
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160905
muted
#847B7A

Preview Lab

Preview with #B33D28

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

Preview Lab → · Contrast checker → · Palette generator →

#B33D28 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva