#B33B28#B33B28

#B33B28 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.3% C 0.159 H 31.6°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX#B33B28
RGBrgb(179, 59, 40)
HSLhsl(8, 63%, 43%)
HSVhsv(8, 78%, 70%)
CMYKcmyk(0%, 67%, 77.7%, 29.8%)
CIE-LABlab(42.56, 47.62, 37.93)
CIE-LCHlch(42.56, 60.88, 38.54°)
OKLaboklab(52.3% 0.1355 0.0835)
OKLCHoklch(52.3% 0.159 31.6)
XYZxyz(20.5397, 12.8679, 3.4093)
Luminance0.1286 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B33B28 #28A0B3
analogous
#B3285B #B33B28 #B38028
triadic
#B33B28 #28B33B #3B28B3
tetradic
#B33B28 #5BB328 #28A0B3 #8028B3
square
#B33B28 #5BB328 #28A0B3 #8028B3
split-complementary
#B33B28 #28B380 #285BB3
monochromatic
#4F1A12 #812B1D #B33B28 #D55743 #E08475

Accessibility & contrast

On white

5.88
#B33B28 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.57
#B33B28 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33B28
5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B33B28#FFFFFF#000000##FFFFFF
##B33B281.005.883.575.88
#FFFFFF5.881.0021.001.00
#0000003.5721.001.0021.00
##FFFFFF5.881.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D5425
Deuteranopia (green-blind)
#7B6E23
Tritanopia (blue-blind)
#C51737
Achromatopsia (no color)
#646464

Design tokens & code

CSS
--color: #b33b28;
/* rgb */ color: rgb(179, 59, 40);
/* oklch */ color: oklch(52.3% 0.159 31.6);
Tailwind
colors: {
  custom: {
    50: '#d27763',
    500: '#b33b28',
    950: '#000000',
  },
}
SCSS
$custom: #b33b28;
$custom-light: #d27763;
$custom-dark: #000000;
JSON
{
  "hex": "#b33b28",
  "rgb": {
    "r": 179,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 8.201,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52304,
    "c": 0.15912,
    "h": 31.6
  },
  "luminance": 0.12865
}

Semantic roles & 50–950 ramp

primary
#B33B28
secondary
#6FBCC8
accent
#D0E641
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160905
muted
#847B7A

Preview Lab

Preview with #B33B28

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

Preview Lab → · Contrast checker → · Palette generator →

#B33B28 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva