#B33A29#B33A29

#B33A29 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.2% C 0.160 H 31.0°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B33A29
RGB	rgb(179, 58, 41)
HSL	hsl(7, 63%, 43%)
HSV	hsv(7, 77%, 70%)
CMYK	cmyk(0%, 67.6%, 77.1%, 29.8%)
CIE-LAB	lab(42.42, 48.08, 37.23)
CIE-LCH	lch(42.42, 60.81, 37.76°)
OKLab	oklab(52.2% 0.1371 0.0823)
OKLCH	oklch(52.2% 0.16 31)
XYZ	xyz(20.5060, 12.7729, 3.4831)
Luminance	0.1277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A29 #29A2B3

analogous

#B3295D #B33A29 #B37F29

triadic

#B33A29 #29B33A #3A29B3

tetradic

#B33A29 #5DB329 #29A2B3 #7F29B3

square

#B33A29 #5DB329 #29A2B3 #7F29B3

split-complementary

#B33A29 #29B37F #295DB3

monochromatic

#4F1A12 #812A1E #B33A29 #D45745 #E08477

Accessibility & contrast

On white

5.91

#B33A29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B33A29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A29

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A29	#FFFFFF	#000000	##FFFFFF
##B33A29	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5326

Deuteranopia (green-blind)

#7B6E24

Tritanopia (blue-blind)

#C51537

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33a29;
/* rgb */ color: rgb(179, 58, 41);
/* oklch */ color: oklch(52.2% 0.160 31.0);

Tailwind

colors: {
  custom: {
    50: '#d27764',
    500: '#b33a29',
    950: '#000000',
  },
}

SCSS

$custom: #b33a29;
$custom-light: #d27764;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a29",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 41
  },
  "hsl": {
    "h": 7.391,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52199,
    "c": 0.15987,
    "h": 31
  },
  "luminance": 0.1277
}

Semantic roles & 50–950 ramp

primary

#B33A29

secondary

#70BDC7

accent

#D2E642

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B33A29

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

Preview Lab → · Contrast checker → · Palette generator →