#B33729#B33729

#B33729 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.163 H 30.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B33729
RGB	rgb(179, 55, 41)
HSL	hsl(6, 63%, 43%)
HSV	hsv(6, 77%, 70%)
CMYK	cmyk(0%, 69.3%, 77.1%, 29.8%)
CIE-LAB	lab(41.97, 49.30, 36.75)
CIE-LCH	lch(41.97, 61.50, 36.70°)
OKLab	oklab(51.86% 0.1409 0.0812)
OKLCH	oklch(51.86% 0.163 30)
XYZ	xyz(20.3591, 12.4792, 3.4341)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33729 #29A5B3

analogous

#B32960 #B33729 #B37C29

triadic

#B33729 #29B337 #3729B3

tetradic

#B33729 #60B329 #29A5B3 #7C29B3

square

#B33729 #60B329 #29A5B3 #7C29B3

split-complementary

#B33729 #29B37C #2960B3

monochromatic

#4F1812 #81281E #B33729 #D45345 #E08177

Accessibility & contrast

On white

6.01

#B33729 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B33729 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33729

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33729	#FFFFFF	#000000	##FFFFFF
##B33729	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5226

Deuteranopia (green-blind)

#7A6D24

Tritanopia (blue-blind)

#C50B35

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33729;
/* rgb */ color: rgb(179, 55, 41);
/* oklch */ color: oklch(51.9% 0.163 30.0);

Tailwind

colors: {
  custom: {
    50: '#d27564',
    500: '#b33729',
    950: '#000000',
  },
}

SCSS

$custom: #b33729;
$custom-light: #d27564;
$custom-dark: #000000;

JSON

{
  "hex": "#b33729",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 41
  },
  "hsl": {
    "h": 6.087,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.5186,
    "c": 0.16265,
    "h": 30
  },
  "luminance": 0.12476
}

Semantic roles & 50–950 ramp

primary

#B33729

secondary

#70BFC7

accent

#D5E642

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B33729

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

Preview Lab → · Contrast checker → · Palette generator →