#B33F3D#B33F3D

#B33F3D is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.151 H 24.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX#B33F3D
RGBrgb(179, 63, 61)
HSLhsl(1, 49%, 47%)
HSVhsv(1, 66%, 70%)
CMYKcmyk(0%, 64.8%, 65.9%, 29.8%)
CIE-LABlab(43.48, 46.93, 26.87)
CIE-LCHlch(43.48, 54.07, 29.79°)
OKLaboklab(53.08% 0.1376 0.0634)
OKLCHoklch(53.08% 0.151 24.7)
XYZxyz(21.2123, 13.4786, 5.8986)
Luminance0.1348 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B33F3D #3DB1B3
analogous
#B33D76 #B33F3D #B37A3D
triadic
#B33F3D #3DB33F #3F3DB3
tetradic
#B33F3D #76B33D #3DB1B3 #7A3DB3
square
#B33F3D #76B33D #3DB1B3 #7A3DB3
split-complementary
#B33F3D #3DB37A #3D76B3
monochromatic
#581F1E #852F2D #B33F3D #CA6563 #D99291

Accessibility & contrast

On white

5.68
#B33F3D on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.70
#B33F3D on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F3D
5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B33F3D#FFFFFF#000000##FFFFFF
##B33F3D1.005.683.705.68
#FFFFFF5.681.0021.001.00
#0000003.7021.001.0021.00
##FFFFFF5.681.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5E573C
Deuteranopia (green-blind)
#7B703A
Tritanopia (blue-blind)
#C42440
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #b33f3d;
/* rgb */ color: rgb(179, 63, 61);
/* oklch */ color: oklch(53.1% 0.151 24.7);
Tailwind
colors: {
  custom: {
    50: '#d17a72',
    500: '#b33f3d',
    950: '#000000',
  },
}
SCSS
$custom: #b33f3d;
$custom-light: #d17a72;
$custom-dark: #000000;
JSON
{
  "hex": "#b33f3d",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 1.017,
    "s": 49.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53076,
    "c": 0.15147,
    "h": 24.7
  },
  "luminance": 0.13476
}

Semantic roles & 50–950 ramp

primary
#B33F3D
secondary
#87C4C5
accent
#D6D94F
background
#FDF7F6
surface
#FBEEEC
border
#D4C9C7
text
#150A08
muted
#837C7B

Preview Lab

Preview with #B33F3D

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

Preview Lab → · Contrast checker → · Palette generator →

#B33F3D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva