#B4221C#B4221C

#B4221C is a mid, vivid red. Relative luminance 0.109; OKLCH L 50.0% C 0.182 H 28.4°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#B4221C
RGB	rgb(180, 34, 28)
HSL	hsl(2, 73%, 41%)
HSV	hsv(2, 84%, 71%)
CMYK	cmyk(0%, 81.1%, 84.4%, 29.4%)
CIE-LAB	lab(39.47, 56.34, 41.36)
CIE-LCH	lch(39.47, 69.89, 36.28°)
OKLab	oklab(49.99% 0.1603 0.0867)
OKLCH	oklch(49.99% 0.182 28.4)
XYZ	xyz(19.6065, 10.9344, 2.1766)
Luminance	0.1093 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4221C #1CAEB4

analogous

#B41C62 #B4221C #B46E1C

triadic

#B4221C #1CB422 #221CB4

tetradic

#B4221C #62B41C #1CAEB4 #6E1CB4

square

#B4221C #62B41C #1CAEB4 #6E1CB4

split-complementary

#B4221C #1CB46E #1C62B4

monochromatic

#4A0E0C #7F1814 #B4221C #DF362F #E76964

Accessibility & contrast

On white

6.59

#B4221C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B4221C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4221C

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4221C	#FFFFFF	#000000	##FFFFFF
##B4221C	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)

#524919

Deuteranopia (green-blind)

#756813

Tritanopia (blue-blind)

#C70023

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b4221c;
/* rgb */ color: rgb(180, 34, 28);
/* oklch */ color: oklch(50.0% 0.182 28.4);

Tailwind

colors: {
  custom: {
    50: '#d56c5a',
    500: '#b4221c',
    950: '#000000',
  },
}

SCSS

$custom: #b4221c;
$custom-light: #d56c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b4221c",
  "rgb": {
    "r": 180,
    "g": 34,
    "b": 28
  },
  "hsl": {
    "h": 2.368,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.49993,
    "c": 0.18226,
    "h": 28.4
  },
  "luminance": 0.10931
}

Semantic roles & 50–950 ramp

primary

#B4221C

secondary

#60C7CC

accent

#E9F038

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B4221C

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

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