#B33228#B33228

#B33228 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.167 H 28.8°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B33228
RGB	rgb(179, 50, 40)
HSL	hsl(4, 63%, 43%)
HSV	hsv(4, 78%, 70%)
CMYK	cmyk(0%, 72.1%, 77.7%, 29.8%)
CIE-LAB	lab(41.25, 51.20, 36.55)
CIE-LCH	lch(41.25, 62.91, 35.52°)
OKLab	oklab(51.32% 0.1467 0.0805)
OKLCH	oklch(51.32% 0.167 28.8)
XYZ	xyz(20.1163, 12.0212, 3.2682)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33228 #28A9B3

analogous

#B32863 #B33228 #B37828

triadic

#B33228 #28B332 #3228B3

tetradic

#B33228 #63B328 #28A9B3 #7828B3

square

#B33228 #63B328 #28A9B3 #7828B3

split-complementary

#B33228 #28B378 #2863B3

monochromatic

#4F1612 #81241D #B33228 #D54E43 #E07D75

Accessibility & contrast

On white

6.17

#B33228 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B33228 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33228

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33228	#FFFFFF	#000000	##FFFFFF
##B33228	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F26

Deuteranopia (green-blind)

#786C23

Tritanopia (blue-blind)

#C50031

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33228;
/* rgb */ color: rgb(179, 50, 40);
/* oklch */ color: oklch(51.3% 0.167 28.8);

Tailwind

colors: {
  custom: {
    50: '#d27363',
    500: '#b33228',
    950: '#000000',
  },
}

SCSS

$custom: #b33228;
$custom-light: #d27363;
$custom-dark: #000000;

JSON

{
  "hex": "#b33228",
  "rgb": {
    "r": 179,
    "g": 50,
    "b": 40
  },
  "hsl": {
    "h": 4.317,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5132,
    "c": 0.1673,
    "h": 28.8
  },
  "luminance": 0.12018
}

Semantic roles & 50–950 ramp

primary

#B33228

secondary

#6FC1C8

accent

#DBE641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33228

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

Preview Lab → · Contrast checker → · Palette generator →