#B33628#B33628

#B33628 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.7% C 0.164 H 30.0°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B33628
RGB	rgb(179, 54, 40)
HSL	hsl(6, 63%, 43%)
HSV	hsv(6, 78%, 70%)
CMYK	cmyk(0%, 69.8%, 77.7%, 29.8%)
CIE-LAB	lab(41.81, 49.66, 37.14)
CIE-LCH	lch(41.81, 62.02, 36.79°)
OKLab	oklab(51.74% 0.1419 0.0818)
OKLCH	oklch(51.74% 0.164 30)
XYZ	xyz(20.2949, 12.3783, 3.3277)
Luminance	0.1237 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33628 #28A5B3

analogous

#B32860 #B33628 #B37B28

triadic

#B33628 #28B336 #3628B3

tetradic

#B33628 #60B328 #28A5B3 #7B28B3

square

#B33628 #60B328 #28A5B3 #7B28B3

split-complementary

#B33628 #28B37B #2860B3

monochromatic

#4F1812 #81271D #B33628 #D55243 #E08075

Accessibility & contrast

On white

6.04

#B33628 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B33628 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33628

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33628	#FFFFFF	#000000	##FFFFFF
##B33628	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5125

Deuteranopia (green-blind)

#796D23

Tritanopia (blue-blind)

#C50734

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33628;
/* rgb */ color: rgb(179, 54, 40);
/* oklch */ color: oklch(51.7% 0.164 30.0);

Tailwind

colors: {
  custom: {
    50: '#d27563',
    500: '#b33628',
    950: '#000000',
  },
}

SCSS

$custom: #b33628;
$custom-light: #d27563;
$custom-dark: #000000;

JSON

{
  "hex": "#b33628",
  "rgb": {
    "r": 179,
    "g": 54,
    "b": 40
  },
  "hsl": {
    "h": 6.043,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5174,
    "c": 0.16373,
    "h": 30
  },
  "luminance": 0.12375
}

Semantic roles & 50–950 ramp

primary

#B33628

secondary

#6FBFC8

accent

#D6E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33628

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

Preview Lab → · Contrast checker → · Palette generator →