#B33F42#B33F42

#B33F42 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.151 H 22.4°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B33F42
RGB	rgb(179, 63, 66)
HSL	hsl(358, 48%, 47%)
HSV	hsv(358, 65%, 70%)
CMYK	cmyk(0%, 64.8%, 63.1%, 29.8%)
CIE-LAB	lab(43.56, 47.24, 23.96)
CIE-LCH	lch(43.56, 52.97, 26.89°)
OKLab	oklab(53.16% 0.1395 0.0574)
OKLCH	oklch(53.16% 0.151 22.4)
XYZ	xyz(21.3534, 13.5350, 6.6413)
Luminance	0.1353 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F42 #3FB3B0

analogous

#B33F7C #B33F42 #B3763F

triadic

#B33F42 #42B33F #3F42B3

tetradic

#B33F42 #7CB33F #3FB3B0 #763FB3

square

#B33F42 #7CB33F #3FB3B0 #763FB3

split-complementary

#B33F42 #3FB376 #3F7CB3

monochromatic

#581F21 #862F31 #B33F42 #C96669 #D99395

Accessibility & contrast

On white

5.67

#B33F42 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B33F42 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F42

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F42	#FFFFFF	#000000	##FFFFFF
##B33F42	1.00	5.67	3.71	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5741

Deuteranopia (green-blind)

#7A703F

Tritanopia (blue-blind)

#C42641

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b33f42;
/* rgb */ color: rgb(179, 63, 66);
/* oklch */ color: oklch(53.2% 0.151 22.4);

Tailwind

colors: {
  custom: {
    50: '#d07a76',
    500: '#b33f42',
    950: '#000000',
  },
}

SCSS

$custom: #b33f42;
$custom-light: #d07a76;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f42",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 66
  },
  "hsl": {
    "h": 358.448,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53165,
    "c": 0.15087,
    "h": 22.4
  },
  "luminance": 0.13532
}

Semantic roles & 50–950 ramp

primary

#B33F42

secondary

#89C4C3

accent

#D8D450

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B33F42

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

Preview Lab → · Contrast checker → · Palette generator →