#B3211A#B3211A

#B3211A is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.7% C 0.182 H 28.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#B3211A
RGB	rgb(179, 33, 26)
HSL	hsl(3, 75%, 40%)
HSV	hsv(3, 85%, 70%)
CMYK	cmyk(0%, 81.6%, 85.5%, 29.8%)
CIE-LAB	lab(39.15, 56.27, 42.02)
CIE-LCH	lch(39.15, 70.23, 36.75°)
OKLab	oklab(49.72% 0.1598 0.0875)
OKLCH	oklch(49.72% 0.182 28.7)
XYZ	xyz(19.3232, 10.7492, 2.0345)
Luminance	0.1075 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3211A #1AACB3

analogous

#B31A60 #B3211A #B36D1A

triadic

#B3211A #1AB321 #211AB3

tetradic

#B3211A #60B31A #1AACB3 #6D1AB3

square

#B3211A #60B31A #1AACB3 #6D1AB3

split-complementary

#B3211A #1AB36D #1A60B3

monochromatic

#480D0A #7E1712 #B3211A #E0322A #E86660

Accessibility & contrast

On white

6.67

#B3211A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#B3211A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3211A

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3211A	#FFFFFF	#000000	##FFFFFF
##B3211A	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514817

Deuteranopia (green-blind)

#756710

Tritanopia (blue-blind)

#C60022

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b3211a;
/* rgb */ color: rgb(179, 33, 26);
/* oklch */ color: oklch(49.7% 0.182 28.7);

Tailwind

colors: {
  custom: {
    50: '#d46c59',
    500: '#b3211a',
    950: '#000000',
  },
}

SCSS

$custom: #b3211a;
$custom-light: #d46c59;
$custom-dark: #000000;

JSON

{
  "hex": "#b3211a",
  "rgb": {
    "r": 179,
    "g": 33,
    "b": 26
  },
  "hsl": {
    "h": 2.745,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49718,
    "c": 0.1822,
    "h": 28.7
  },
  "luminance": 0.10746
}

Semantic roles & 50–950 ramp

primary

#B3211A

secondary

#5DC7CC

accent

#E9F137

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160803

muted

#847A78

Preview Lab

Preview with #B3211A

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

Preview Lab → · Contrast checker → · Palette generator →