#B33F36#B33F36

#B33F36 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.153 H 27.9°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B33F36
RGB	rgb(179, 63, 54)
HSL	hsl(4, 54%, 46%)
HSV	hsv(4, 70%, 70%)
CMYK	cmyk(0%, 64.8%, 69.8%, 29.8%)
CIE-LAB	lab(43.37, 46.53, 30.89)
CIE-LCH	lch(43.37, 55.85, 33.58°)
OKLab	oklab(52.97% 0.1349 0.0713)
OKLCH	oklch(52.97% 0.153 27.9)
XYZ	xyz(21.0360, 13.4080, 4.9696)
Luminance	0.1341 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F36 #36AAB3

analogous

#B3366B #B33F36 #B37D36

triadic

#B33F36 #36B33F #3F36B3

tetradic

#B33F36 #6BB336 #36AAB3 #7D36B3

square

#B33F36 #6BB336 #36AAB3 #7D36B3

split-complementary

#B33F36 #36B37D #366BB3

monochromatic

#551E1A #842E28 #B33F36 #CD6259 #DB8E88

Accessibility & contrast

On white

5.70

#B33F36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B33F36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F36

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F36	#FFFFFF	#000000	##FFFFFF
##B33F36	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5734

Deuteranopia (green-blind)

#7C7033

Tritanopia (blue-blind)

#C5223E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f36;
/* rgb */ color: rgb(179, 63, 54);
/* oklch */ color: oklch(53.0% 0.153 27.9);

Tailwind

colors: {
  custom: {
    50: '#d17a6d',
    500: '#b33f36',
    950: '#000000',
  },
}

SCSS

$custom: #b33f36;
$custom-light: #d17a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f36",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 54
  },
  "hsl": {
    "h": 4.32,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52965,
    "c": 0.15257,
    "h": 27.9
  },
  "luminance": 0.13405
}

Semantic roles & 50–950 ramp

primary

#B33F36

secondary

#80C0C5

accent

#D3DD4B

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B33F36

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

Preview Lab → · Contrast checker → · Palette generator →