#B3221A#B3221A

#B3221A is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.182 H 28.9°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#B3221A
RGB	rgb(179, 34, 26)
HSL	hsl(3, 75%, 40%)
HSV	hsv(3, 85%, 70%)
CMYK	cmyk(0%, 81%, 85.5%, 29.8%)
CIE-LAB	lab(39.25, 55.99, 42.11)
CIE-LCH	lch(39.25, 70.06, 36.94°)
OKLab	oklab(49.79% 0.159 0.0877)
OKLCH	oklch(49.79% 0.182 28.9)
XYZ	xyz(19.3513, 10.8055, 2.0439)
Luminance	0.1080 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3221A #1AABB3

analogous

#B31A5F #B3221A #B36E1A

triadic

#B3221A #1AB322 #221AB3

tetradic

#B3221A #5FB31A #1AABB3 #6E1AB3

square

#B3221A #5FB31A #1AABB3 #6E1AB3

split-complementary

#B3221A #1AB36E #1A5FB3

monochromatic

#480E0A #7E1812 #B3221A #E0342A #E86760

Accessibility & contrast

On white

6.64

#B3221A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#B3221A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3221A

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3221A	#FFFFFF	#000000	##FFFFFF
##B3221A	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524817

Deuteranopia (green-blind)

#756810

Tritanopia (blue-blind)

#C60022

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b3221a;
/* rgb */ color: rgb(179, 34, 26);
/* oklch */ color: oklch(49.8% 0.182 28.9);

Tailwind

colors: {
  custom: {
    50: '#d46c59',
    500: '#b3221a',
    950: '#000000',
  },
}

SCSS

$custom: #b3221a;
$custom-light: #d46c59;
$custom-dark: #000000;

JSON

{
  "hex": "#b3221a",
  "rgb": {
    "r": 179,
    "g": 34,
    "b": 26
  },
  "hsl": {
    "h": 3.137,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4979,
    "c": 0.18155,
    "h": 28.9
  },
  "luminance": 0.10802
}

Semantic roles & 50–950 ramp

primary

#B3221A

secondary

#5DC6CC

accent

#E7F137

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160803

muted

#847A78

Preview Lab

Preview with #B3221A

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

Preview Lab → · Contrast checker → · Palette generator →