#B33C3E#B33C3E

#B33C3E is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.155 H 23.2°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B33C3E
RGB	rgb(179, 60, 62)
HSL	hsl(359, 50%, 47%)
HSV	hsv(359, 66%, 70%)
CMYK	cmyk(0%, 66.5%, 65.4%, 29.8%)
CIE-LAB	lab(43.01, 48.28, 25.69)
CIE-LCH	lch(43.01, 54.69, 28.02°)
OKLab	oklab(52.73% 0.142 0.0609)
OKLCH	oklch(52.73% 0.155 23.2)
XYZ	xyz(21.0779, 13.1662, 5.9879)
Luminance	0.1316 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33C3E #3CB3B1

analogous

#B33C79 #B33C3E #B3763C

triadic

#B33C3E #3EB33C #3C3EB3

tetradic

#B33C3E #79B33C #3CB3B1 #763CB3

square

#B33C3E #79B33C #3CB3B1 #763CB3

split-complementary

#B33C3E #3CB376 #3C79B3

monochromatic

#571D1E #852D2E #B33C3E #CA6264 #DA9091

Accessibility & contrast

On white

5.78

#B33C3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B33C3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33C3E

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33C3E	#FFFFFF	#000000	##FFFFFF
##B33C3E	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C553D

Deuteranopia (green-blind)

#7A6F3B

Tritanopia (blue-blind)

#C41F3E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33c3e;
/* rgb */ color: rgb(179, 60, 62);
/* oklch */ color: oklch(52.7% 0.155 23.2);

Tailwind

colors: {
  custom: {
    50: '#d17873',
    500: '#b33c3e',
    950: '#000000',
  },
}

SCSS

$custom: #b33c3e;
$custom-light: #d17873;
$custom-dark: #000000;

JSON

{
  "hex": "#b33c3e",
  "rgb": {
    "r": 179,
    "g": 60,
    "b": 62
  },
  "hsl": {
    "h": 358.992,
    "s": 49.791,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52734,
    "c": 0.15453,
    "h": 23.2
  },
  "luminance": 0.13163
}

Semantic roles & 50–950 ramp

primary

#B33C3E

secondary

#86C5C4

accent

#D9D74E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33C3E

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

Preview Lab → · Contrast checker → · Palette generator →