#B33C3A#B33C3A

#B33C3A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.155 H 25.0°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B33C3A
RGB	rgb(179, 60, 58)
HSL	hsl(1, 51%, 46%)
HSV	hsv(1, 68%, 70%)
CMYK	cmyk(0%, 66.5%, 67.6%, 29.8%)
CIE-LAB	lab(42.95, 48.05, 28.02)
CIE-LCH	lch(42.95, 55.62, 30.25°)
OKLab	oklab(52.67% 0.1405 0.0656)
OKLCH	oklch(52.67% 0.155 25)
XYZ	xyz(20.9722, 13.1239, 5.4310)
Luminance	0.1312 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33C3A #3AB1B3

analogous

#B33A75 #B33C3A #B3793A

triadic

#B33C3A #3AB33C #3C3AB3

tetradic

#B33C3A #75B33A #3AB1B3 #793AB3

square

#B33C3A #75B33A #3AB1B3 #793AB3

split-complementary

#B33C3A #3AB379 #3A75B3

monochromatic

#571D1C #852D2B #B33C3A #CB615F #DA8F8D

Accessibility & contrast

On white

5.79

#B33C3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B33C3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33C3A

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33C3A	#FFFFFF	#000000	##FFFFFF
##B33C3A	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5539

Deuteranopia (green-blind)

#7A6F37

Tritanopia (blue-blind)

#C41E3D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33c3a;
/* rgb */ color: rgb(179, 60, 58);
/* oklch */ color: oklch(52.7% 0.155 25.0);

Tailwind

colors: {
  custom: {
    50: '#d17870',
    500: '#b33c3a',
    950: '#000000',
  },
}

SCSS

$custom: #b33c3a;
$custom-light: #d17870;
$custom-dark: #000000;

JSON

{
  "hex": "#b33c3a",
  "rgb": {
    "r": 179,
    "g": 60,
    "b": 58
  },
  "hsl": {
    "h": 0.992,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52667,
    "c": 0.15503,
    "h": 25
  },
  "luminance": 0.13121
}

Semantic roles & 50–950 ramp

primary

#B33C3A

secondary

#84C4C5

accent

#D8DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33C3A

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

Preview Lab → · Contrast checker → · Palette generator →