#B33A3C#B33A3C

#B33A3C is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.157 H 23.4°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B33A3C
RGB	rgb(179, 58, 60)
HSL	hsl(359, 51%, 46%)
HSV	hsv(359, 68%, 70%)
CMYK	cmyk(0%, 67.6%, 66.5%, 29.8%)
CIE-LAB	lab(42.67, 49.00, 26.47)
CIE-LCH	lch(42.67, 55.69, 28.38°)
OKLab	oklab(52.47% 0.1439 0.0624)
OKLCH	oklch(52.47% 0.157 23.4)
XYZ	xyz(20.9212, 12.9390, 5.6699)
Luminance	0.1294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A3C #3AB3B1

analogous

#B33A79 #B33A3C #B3753A

triadic

#B33A3C #3CB33A #3A3CB3

tetradic

#B33A3C #79B33A #3AB3B1 #753AB3

square

#B33A3C #79B33A #3AB3B1 #753AB3

split-complementary

#B33A3C #3AB375 #3A79B3

monochromatic

#571C1D #852B2D #B33A3C #CB5F61 #DA8D8F

Accessibility & contrast

On white

5.85

#B33A3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B33A3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A3C

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A3C	#FFFFFF	#000000	##FFFFFF
##B33A3C	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B543B

Deuteranopia (green-blind)

#796E39

Tritanopia (blue-blind)

#C41B3C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33a3c;
/* rgb */ color: rgb(179, 58, 60);
/* oklch */ color: oklch(52.5% 0.157 23.4);

Tailwind

colors: {
  custom: {
    50: '#d17771',
    500: '#b33a3c',
    950: '#000000',
  },
}

SCSS

$custom: #b33a3c;
$custom-light: #d17771;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a3c",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 60
  },
  "hsl": {
    "h": 359.008,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52468,
    "c": 0.15685,
    "h": 23.4
  },
  "luminance": 0.12936
}

Semantic roles & 50–950 ramp

primary

#B33A3C

secondary

#84C5C4

accent

#DBD84D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33A3C

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

Preview Lab → · Contrast checker → · Palette generator →