#B33428#B33428

#B33428 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.166 H 29.3°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#B33428
RGB	rgb(179, 52, 40)
HSL	hsl(5, 63%, 43%)
HSV	hsv(5, 78%, 70%)
CMYK	cmyk(0%, 70.9%, 77.7%, 29.8%)
CIE-LAB	lab(41.53, 50.44, 36.84)
CIE-LCH	lch(41.53, 62.47, 36.14°)
OKLab	oklab(51.53% 0.1443 0.0811)
OKLCH	oklch(51.53% 0.166 29.3)
XYZ	xyz(20.2037, 12.1960, 3.2973)
Luminance	0.1219 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33428 #28A7B3

analogous

#B32861 #B33428 #B37928

triadic

#B33428 #28B334 #3428B3

tetradic

#B33428 #61B328 #28A7B3 #7928B3

square

#B33428 #61B328 #28A7B3 #7928B3

split-complementary

#B33428 #28B379 #2861B3

monochromatic

#4F1712 #81251D #B33428 #D55043 #E07E75

Accessibility & contrast

On white

6.11

#B33428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B33428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33428

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33428	#FFFFFF	#000000	##FFFFFF
##B33428	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595025

Deuteranopia (green-blind)

#796C23

Tritanopia (blue-blind)

#C50032

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b33428;
/* rgb */ color: rgb(179, 52, 40);
/* oklch */ color: oklch(51.5% 0.166 29.3);

Tailwind

colors: {
  custom: {
    50: '#d27463',
    500: '#b33428',
    950: '#000000',
  },
}

SCSS

$custom: #b33428;
$custom-light: #d27463;
$custom-dark: #000000;

JSON

{
  "hex": "#b33428",
  "rgb": {
    "r": 179,
    "g": 52,
    "b": 40
  },
  "hsl": {
    "h": 5.18,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.51526,
    "c": 0.16553,
    "h": 29.3
  },
  "luminance": 0.12193
}

Semantic roles & 50–950 ramp

primary

#B33428

secondary

#6FC0C8

accent

#D8E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33428

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

Preview Lab → · Contrast checker → · Palette generator →