#B4221D#B4221D

#B4221D is a mid, vivid red. Relative luminance 0.109; OKLCH L 50.0% C 0.182 H 28.2°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#B4221D
RGB	rgb(180, 34, 29)
HSL	hsl(2, 72%, 41%)
HSV	hsv(2, 84%, 71%)
CMYK	cmyk(0%, 81.1%, 83.9%, 29.4%)
CIE-LAB	lab(39.48, 56.36, 40.84)
CIE-LCH	lch(39.48, 69.61, 35.93°)
OKLab	oklab(50% 0.1606 0.086)
OKLCH	oklch(50% 0.182 28.2)
XYZ	xyz(19.6186, 10.9393, 2.2407)
Luminance	0.1094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4221D #1DAFB4

analogous

#B41D63 #B4221D #B46D1D

triadic

#B4221D #1DB422 #221DB4

tetradic

#B4221D #63B41D #1DAFB4 #6D1DB4

square

#B4221D #63B41D #1DAFB4 #6D1DB4

split-complementary

#B4221D #1DB46D #1D63B4

monochromatic

#4B0E0C #7F1815 #B4221D #DE3630 #E66965

Accessibility & contrast

On white

6.59

#B4221D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B4221D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4221D

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4221D	#FFFFFF	#000000	##FFFFFF
##B4221D	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52491A

Deuteranopia (green-blind)

#756814

Tritanopia (blue-blind)

#C70023

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b4221d;
/* rgb */ color: rgb(180, 34, 29);
/* oklch */ color: oklch(50.0% 0.182 28.2);

Tailwind

colors: {
  custom: {
    50: '#d46c5b',
    500: '#b4221d',
    950: '#000000',
  },
}

SCSS

$custom: #b4221d;
$custom-light: #d46c5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b4221d",
  "rgb": {
    "r": 180,
    "g": 34,
    "b": 29
  },
  "hsl": {
    "h": 1.987,
    "s": 72.249,
    "l": 40.98
  },
  "oklch": {
    "l": 0.50001,
    "c": 0.18215,
    "h": 28.2
  },
  "luminance": 0.10936
}

Semantic roles & 50–950 ramp

primary

#B4221D

secondary

#61C8CB

accent

#E9EF39

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B4221D

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

Preview Lab → · Contrast checker → · Palette generator →