#B33A3E#B33A3E

#B33A3E is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.157 H 22.5°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B33A3E
RGB	rgb(179, 58, 62)
HSL	hsl(358, 51%, 46%)
HSV	hsv(358, 68%, 70%)
CMYK	cmyk(0%, 67.6%, 65.4%, 29.8%)
CIE-LAB	lab(42.70, 49.12, 25.30)
CIE-LCH	lch(42.70, 55.25, 27.25°)
OKLab	oklab(52.5% 0.1447 0.06)
OKLCH	oklch(52.5% 0.157 22.5)
XYZ	xyz(20.9751, 12.9606, 5.9537)
Luminance	0.1296 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A3E #3AB3AF

analogous

#B33A7B #B33A3E #B3733A

triadic

#B33A3E #3EB33A #3A3EB3

tetradic

#B33A3E #7BB33A #3AB3AF #733AB3

square

#B33A3E #7BB33A #3AB3AF #733AB3

split-complementary

#B33A3E #3AB373 #3A7BB3

monochromatic

#571C1E #852B2E #B33A3E #CB5F63 #DA8D90

Accessibility & contrast

On white

5.85

#B33A3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B33A3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A3E

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A3E	#FFFFFF	#000000	##FFFFFF
##B33A3E	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)

#5A543D

Deuteranopia (green-blind)

#796E3B

Tritanopia (blue-blind)

#C41B3D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33a3e;
/* rgb */ color: rgb(179, 58, 62);
/* oklch */ color: oklch(52.5% 0.157 22.5);

Tailwind

colors: {
  custom: {
    50: '#d17773',
    500: '#b33a3e',
    950: '#000000',
  },
}

SCSS

$custom: #b33a3e;
$custom-light: #d17773;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a3e",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 62
  },
  "hsl": {
    "h": 358.017,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52503,
    "c": 0.15664,
    "h": 22.5
  },
  "luminance": 0.12958
}

Semantic roles & 50–950 ramp

primary

#B33A3E

secondary

#84C5C3

accent

#DBD64D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33A3E

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

Preview Lab → · Contrast checker → · Palette generator →