#B33A3D#B33A3D

#B33A3D is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.157 H 23.0°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B33A3D
RGB	rgb(179, 58, 61)
HSL	hsl(359, 51%, 46%)
HSV	hsv(359, 68%, 70%)
CMYK	cmyk(0%, 67.6%, 65.9%, 29.8%)
CIE-LAB	lab(42.69, 49.06, 25.89)
CIE-LCH	lch(42.69, 55.47, 27.82°)
OKLab	oklab(52.49% 0.1443 0.0612)
OKLCH	oklch(52.49% 0.157 23)
XYZ	xyz(20.9479, 12.9497, 5.8105)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A3D #3AB3B0

analogous

#B33A7A #B33A3D #B3743A

triadic

#B33A3D #3DB33A #3A3DB3

tetradic

#B33A3D #7AB33A #3AB3B0 #743AB3

square

#B33A3D #7AB33A #3AB3B0 #743AB3

split-complementary

#B33A3D #3AB374 #3A7AB3

monochromatic

#571C1D #852B2D #B33A3D #CB5F62 #DA8D8F

Accessibility & contrast

On white

5.85

#B33A3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B33A3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A3D

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A3D	#FFFFFF	#000000	##FFFFFF
##B33A3D	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)

#5B543C

Deuteranopia (green-blind)

#796E3A

Tritanopia (blue-blind)

#C41B3C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33a3d;
/* rgb */ color: rgb(179, 58, 61);
/* oklch */ color: oklch(52.5% 0.157 23.0);

Tailwind

colors: {
  custom: {
    50: '#d17772',
    500: '#b33a3d',
    950: '#000000',
  },
}

SCSS

$custom: #b33a3d;
$custom-light: #d17772;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a3d",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 358.512,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52486,
    "c": 0.15675,
    "h": 23
  },
  "luminance": 0.12947
}

Semantic roles & 50–950 ramp

primary

#B33A3D

secondary

#84C5C3

accent

#DBD74D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33A3D

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

Preview Lab → · Contrast checker → · Palette generator →