#B3211C#B3211C

#B3211C is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.7% C 0.182 H 28.2°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#B3211C
RGB	rgb(179, 33, 28)
HSL	hsl(2, 73%, 41%)
HSV	hsv(2, 84%, 70%)
CMYK	cmyk(0%, 81.6%, 84.4%, 29.8%)
CIE-LAB	lab(39.17, 56.31, 41.01)
CIE-LCH	lch(39.17, 69.67, 36.06°)
OKLab	oklab(49.74% 0.1603 0.0861)
OKLCH	oklch(49.74% 0.182 28.2)
XYZ	xyz(19.3463, 10.7584, 2.1563)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3211C #1CAEB3

analogous

#B31C62 #B3211C #B36C1C

triadic

#B3211C #1CB321 #211CB3

tetradic

#B3211C #62B31C #1CAEB3 #6C1CB3

square

#B3211C #62B31C #1CAEB3 #6C1CB3

split-complementary

#B3211C #1CB36C #1C62B3

monochromatic

#490D0B #7E1714 #B3211C #DE342E #E76763

Accessibility & contrast

On white

6.66

#B3211C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#B3211C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3211C

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3211C	#FFFFFF	#000000	##FFFFFF
##B3211C	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514819

Deuteranopia (green-blind)

#746813

Tritanopia (blue-blind)

#C60022

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b3211c;
/* rgb */ color: rgb(179, 33, 28);
/* oklch */ color: oklch(49.7% 0.182 28.2);

Tailwind

colors: {
  custom: {
    50: '#d46c5a',
    500: '#b3211c',
    950: '#000000',
  },
}

SCSS

$custom: #b3211c;
$custom-light: #d46c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b3211c",
  "rgb": {
    "r": 179,
    "g": 33,
    "b": 28
  },
  "hsl": {
    "h": 1.987,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49735,
    "c": 0.18198,
    "h": 28.2
  },
  "luminance": 0.10755
}

Semantic roles & 50–950 ramp

primary

#B3211C

secondary

#5FC8CB

accent

#EAF038

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B3211C

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

Preview Lab → · Contrast checker → · Palette generator →