#B33A39#B33A39

#B33A39 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.157 H 24.8°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#B33A39
RGB	rgb(179, 58, 57)
HSL	hsl(0, 52%, 46%)
HSV	hsv(0, 68%, 70%)
CMYK	cmyk(0%, 67.6%, 68.2%, 29.8%)
CIE-LAB	lab(42.62, 48.83, 28.22)
CIE-LCH	lch(42.62, 56.40, 30.02°)
OKLab	oklab(52.42% 0.1428 0.0659)
OKLCH	oklch(52.42% 0.157 24.8)
XYZ	xyz(20.8442, 12.9082, 5.2641)
Luminance	0.1290 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A39 #39B2B3

analogous

#B33975 #B33A39 #B37739

triadic

#B33A39 #39B33A #3A39B3

tetradic

#B33A39 #75B339 #39B2B3 #7739B3

square

#B33A39 #75B339 #39B2B3 #7739B3

split-complementary

#B33A39 #39B377 #3975B3

monochromatic

#561C1B #852B2A #B33A39 #CC5F5E #DA8D8C

Accessibility & contrast

On white

5.86

#B33A39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B33A39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A39

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A39	#FFFFFF	#000000	##FFFFFF
##B33A39	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5438

Deuteranopia (green-blind)

#796E35

Tritanopia (blue-blind)

#C51A3B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33a39;
/* rgb */ color: rgb(179, 58, 57);
/* oklch */ color: oklch(52.4% 0.157 24.8);

Tailwind

colors: {
  custom: {
    50: '#d1776f',
    500: '#b33a39',
    950: '#000000',
  },
}

SCSS

$custom: #b33a39;
$custom-light: #d1776f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a39",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 57
  },
  "hsl": {
    "h": 0.492,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52418,
    "c": 0.15722,
    "h": 24.8
  },
  "luminance": 0.12905
}

Semantic roles & 50–950 ramp

primary

#B33A39

secondary

#83C4C5

accent

#DADB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33A39

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

Preview Lab → · Contrast checker → · Palette generator →