#B33221#B33221

#B33221 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.2% C 0.168 H 30.9°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B33221
RGB	rgb(179, 50, 33)
HSL	hsl(7, 69%, 42%)
HSV	hsv(7, 82%, 70%)
CMYK	cmyk(0%, 72.1%, 81.6%, 29.8%)
CIE-LAB	lab(41.18, 50.97, 40.29)
CIE-LCH	lch(41.18, 64.97, 38.33°)
OKLab	oklab(51.25% 0.1445 0.0864)
OKLCH	oklch(51.25% 0.168 30.9)
XYZ	xyz(20.0079, 11.9778, 2.6970)
Luminance	0.1197 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33221 #21A2B3

analogous

#B32159 #B33221 #B37B21

triadic

#B33221 #21B332 #3221B3

tetradic

#B33221 #59B321 #21A2B3 #7B21B3

square

#B33221 #59B321 #21A2B3 #7B21B3

split-complementary

#B33221 #21B37B #2159B3

monochromatic

#4C150E #7F2417 #B33221 #DA4A37 #E4796B

Accessibility & contrast

On white

6.19

#B33221 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B33221 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33221

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33221	#FFFFFF	#000000	##FFFFFF
##B33221	1.00	6.19	3.40	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F1E

Deuteranopia (green-blind)

#796B1B

Tritanopia (blue-blind)

#C5002F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33221;
/* rgb */ color: rgb(179, 50, 33);
/* oklch */ color: oklch(51.2% 0.168 30.9);

Tailwind

colors: {
  custom: {
    50: '#d3735e',
    500: '#b33221',
    950: '#000000',
  },
}

SCSS

$custom: #b33221;
$custom-light: #d3735e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33221",
  "rgb": {
    "r": 179,
    "g": 50,
    "b": 33
  },
  "hsl": {
    "h": 6.986,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51246,
    "c": 0.1684,
    "h": 30.9
  },
  "luminance": 0.11975
}

Semantic roles & 50–950 ramp

primary

#B33221

secondary

#66BECA

accent

#D7EC3C

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B33221

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

Preview Lab → · Contrast checker → · Palette generator →