#B3221C#B3221C

#B3221C is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.181 H 28.4°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#B3221C
RGB	rgb(179, 34, 28)
HSL	hsl(2, 73%, 41%)
HSV	hsv(2, 84%, 70%)
CMYK	cmyk(0%, 81%, 84.4%, 29.8%)
CIE-LAB	lab(39.27, 56.04, 41.10)
CIE-LCH	lch(39.27, 69.50, 36.25°)
OKLab	oklab(49.81% 0.1595 0.0863)
OKLCH	oklch(49.81% 0.181 28.4)
XYZ	xyz(19.3745, 10.8148, 2.1657)
Luminance	0.1081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3221C #1CADB3

analogous

#B31C61 #B3221C #B36D1C

triadic

#B3221C #1CB322 #221CB3

tetradic

#B3221C #61B31C #1CADB3 #6D1CB3

square

#B3221C #61B31C #1CADB3 #6D1CB3

split-complementary

#B3221C #1CB36D #1C61B3

monochromatic

#490E0B #7E1814 #B3221C #DE352E #E76863

Accessibility & contrast

On white

6.64

#B3221C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#B3221C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3221C

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3221C	#FFFFFF	#000000	##FFFFFF
##B3221C	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)

#514819

Deuteranopia (green-blind)

#756813

Tritanopia (blue-blind)

#C60023

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b3221c;
/* rgb */ color: rgb(179, 34, 28);
/* oklch */ color: oklch(49.8% 0.181 28.4);

Tailwind

colors: {
  custom: {
    50: '#d46c5a',
    500: '#b3221c',
    950: '#000000',
  },
}

SCSS

$custom: #b3221c;
$custom-light: #d46c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b3221c",
  "rgb": {
    "r": 179,
    "g": 34,
    "b": 28
  },
  "hsl": {
    "h": 2.384,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49806,
    "c": 0.18132,
    "h": 28.4
  },
  "luminance": 0.10812
}

Semantic roles & 50–950 ramp

primary

#B3221C

secondary

#5FC7CB

accent

#E8F038

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B3221C

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

Preview Lab → · Contrast checker → · Palette generator →