#B33F29#B33F29

#B33F29 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.155 H 32.8°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B33F29
RGB	rgb(179, 63, 41)
HSL	hsl(10, 63%, 43%)
HSV	hsv(10, 77%, 70%)
CMYK	cmyk(0%, 64.8%, 77.1%, 29.8%)
CIE-LAB	lab(43.21, 45.93, 38.07)
CIE-LCH	lch(43.21, 59.66, 39.66°)
OKLab	oklab(52.8% 0.1304 0.0841)
OKLCH	oklch(52.8% 0.155 32.8)
XYZ	xyz(20.7704, 13.3018, 3.5712)
Luminance	0.1330 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F29 #299DB3

analogous

#B32958 #B33F29 #B38429

triadic

#B33F29 #29B33F #3F29B3

tetradic

#B33F29 #58B329 #299DB3 #8429B3

square

#B33F29 #58B329 #299DB3 #8429B3

split-complementary

#B33F29 #29B384 #2958B3

monochromatic

#4F1C12 #812D1E #B33F29 #D45C45 #E08777

Accessibility & contrast

On white

5.74

#B33F29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B33F29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F29

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F29	#FFFFFF	#000000	##FFFFFF
##B33F29	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605626

Deuteranopia (green-blind)

#7C7025

Tritanopia (blue-blind)

#C5203B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f29;
/* rgb */ color: rgb(179, 63, 41);
/* oklch */ color: oklch(52.8% 0.155 32.8);

Tailwind

colors: {
  custom: {
    50: '#d27a64',
    500: '#b33f29',
    950: '#000000',
  },
}

SCSS

$custom: #b33f29;
$custom-light: #d27a64;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f29",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 41
  },
  "hsl": {
    "h": 9.565,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52796,
    "c": 0.15516,
    "h": 32.8
  },
  "luminance": 0.13299
}

Semantic roles & 50–950 ramp

primary

#B33F29

secondary

#70BAC7

accent

#CCE642

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B33F29

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

Preview Lab → · Contrast checker → · Palette generator →