#B33D3A#B33D3A

#B33D3A is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.154 H 25.4°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B33D3A
RGB	rgb(179, 61, 58)
HSL	hsl(1, 51%, 46%)
HSV	hsv(1, 68%, 70%)
CMYK	cmyk(0%, 65.9%, 67.6%, 29.8%)
CIE-LAB	lab(43.11, 47.62, 28.21)
CIE-LCH	lch(43.11, 55.35, 30.64°)
OKLab	oklab(52.79% 0.1391 0.066)
OKLCH	oklch(52.79% 0.154 25.4)
XYZ	xyz(21.0250, 13.2296, 5.4486)
Luminance	0.1323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D3A #3AB0B3

analogous

#B33A74 #B33D3A #B37A3A

triadic

#B33D3A #3AB33D #3D3AB3

tetradic

#B33D3A #74B33A #3AB0B3 #7A3AB3

square

#B33D3A #74B33A #3AB0B3 #7A3AB3

split-complementary

#B33D3A #3AB37A #3A74B3

monochromatic

#571D1C #852D2B #B33D3A #CB625F #DA8F8D

Accessibility & contrast

On white

5.76

#B33D3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B33D3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D3A

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D3A	#FFFFFF	#000000	##FFFFFF
##B33D3A	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5639

Deuteranopia (green-blind)

#7A6F37

Tritanopia (blue-blind)

#C4203D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33d3a;
/* rgb */ color: rgb(179, 61, 58);
/* oklch */ color: oklch(52.8% 0.154 25.4);

Tailwind

colors: {
  custom: {
    50: '#d17970',
    500: '#b33d3a',
    950: '#000000',
  },
}

SCSS

$custom: #b33d3a;
$custom-light: #d17970;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d3a",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 58
  },
  "hsl": {
    "h": 1.488,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52785,
    "c": 0.15399,
    "h": 25.4
  },
  "luminance": 0.13227
}

Semantic roles & 50–950 ramp

primary

#B33D3A

secondary

#84C3C5

accent

#D7DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33D3A

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

Preview Lab → · Contrast checker → · Palette generator →