#B3211D#B3211D

#B3211D is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.7% C 0.182 H 28.0°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#B3211D
RGB	rgb(179, 33, 29)
HSL	hsl(2, 72%, 41%)
HSV	hsv(2, 84%, 70%)
CMYK	cmyk(0%, 81.6%, 83.8%, 29.8%)
CIE-LAB	lab(39.18, 56.34, 40.49)
CIE-LCH	lch(39.18, 69.38, 35.71°)
OKLab	oklab(49.74% 0.1606 0.0853)
OKLCH	oklch(49.74% 0.182 28)
XYZ	xyz(19.3585, 10.7633, 2.2204)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3211D #1DAFB3

analogous

#B31D64 #B3211D #B36C1D

triadic

#B3211D #1DB321 #211DB3

tetradic

#B3211D #64B31D #1DAFB3 #6C1DB3

square

#B3211D #64B31D #1DAFB3 #6C1DB3

split-complementary

#B3211D #1DB36C #1D64B3

monochromatic

#4A0E0C #7E1714 #B3211D #DD3430 #E66864

Accessibility & contrast

On white

6.66

#B3211D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#B3211D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3211D

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3211D	#FFFFFF	#000000	##FFFFFF
##B3211D	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)

#51481A

Deuteranopia (green-blind)

#746814

Tritanopia (blue-blind)

#C60022

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b3211d;
/* rgb */ color: rgb(179, 33, 29);
/* oklch */ color: oklch(49.7% 0.182 28.0);

Tailwind

colors: {
  custom: {
    50: '#d46c5b',
    500: '#b3211d',
    950: '#000000',
  },
}

SCSS

$custom: #b3211d;
$custom-light: #d46c5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3211d",
  "rgb": {
    "r": 179,
    "g": 33,
    "b": 29
  },
  "hsl": {
    "h": 1.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.49744,
    "c": 0.18187,
    "h": 28
  },
  "luminance": 0.1076
}

Semantic roles & 50–950 ramp

primary

#B3211D

secondary

#61C8CB

accent

#EAEF39

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B3211D

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

Preview Lab → · Contrast checker → · Palette generator →