#B3221B#B3221B

#B3221B is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.181 H 28.7°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#B3221B
RGB	rgb(179, 34, 27)
HSL	hsl(3, 74%, 40%)
HSV	hsv(3, 85%, 70%)
CMYK	cmyk(0%, 81%, 84.9%, 29.8%)
CIE-LAB	lab(39.26, 56.02, 41.61)
CIE-LCH	lch(39.26, 69.78, 36.60°)
OKLab	oklab(49.8% 0.1592 0.087)
OKLCH	oklch(49.8% 0.181 28.7)
XYZ	xyz(19.3627, 10.8101, 2.1037)
Luminance	0.1081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3221B #1BACB3

analogous

#B31B60 #B3221B #B36E1B

triadic

#B3221B #1BB322 #221BB3

tetradic

#B3221B #60B31B #1BACB3 #6E1BB3

square

#B3221B #60B31B #1BACB3 #6E1BB3

split-complementary

#B3221B #1BB36E #1B60B3

monochromatic

#490E0B #7E1813 #B3221B #DF342C #E76761

Accessibility & contrast

On white

6.64

#B3221B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#B3221B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3221B

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3221B	#FFFFFF	#000000	##FFFFFF
##B3221B	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)

#514818

Deuteranopia (green-blind)

#756812

Tritanopia (blue-blind)

#C60023

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b3221b;
/* rgb */ color: rgb(179, 34, 27);
/* oklch */ color: oklch(49.8% 0.181 28.7);

Tailwind

colors: {
  custom: {
    50: '#d46c59',
    500: '#b3221b',
    950: '#000000',
  },
}

SCSS

$custom: #b3221b;
$custom-light: #d46c59;
$custom-dark: #000000;

JSON

{
  "hex": "#b3221b",
  "rgb": {
    "r": 179,
    "g": 34,
    "b": 27
  },
  "hsl": {
    "h": 2.763,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49798,
    "c": 0.18143,
    "h": 28.7
  },
  "luminance": 0.10807
}

Semantic roles & 50–950 ramp

primary

#B3221B

secondary

#5EC7CC

accent

#E8F037

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B3221B

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

Preview Lab → · Contrast checker → · Palette generator →