#B33320#B33320

#B33320 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.3% C 0.168 H 31.4°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B33320
RGB	rgb(179, 51, 32)
HSL	hsl(8, 70%, 41%)
HSV	hsv(8, 82%, 70%)
CMYK	cmyk(0%, 71.5%, 82.1%, 29.8%)
CIE-LAB	lab(41.31, 50.56, 40.93)
CIE-LCH	lch(41.31, 65.05, 38.99°)
OKLab	oklab(51.34% 0.1431 0.0875)
OKLCH	oklch(51.34% 0.168 31.4)
XYZ	xyz(20.0373, 12.0587, 2.6387)
Luminance	0.1206 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33320 #20A0B3

analogous

#B32057 #B33320 #B37D20

triadic

#B33320 #20B333 #3320B3

tetradic

#B33320 #57B320 #20A0B3 #7D20B3

square

#B33320 #57B320 #20A0B3 #7D20B3

split-complementary

#B33320 #20B37D #2057B3

monochromatic

#4B150D #7F2417 #B33320 #DB4B35 #E47969

Accessibility & contrast

On white

6.16

#B33320 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B33320 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33320

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33320	#FFFFFF	#000000	##FFFFFF
##B33320	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F1C

Deuteranopia (green-blind)

#796C1A

Tritanopia (blue-blind)

#C50030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33320;
/* rgb */ color: rgb(179, 51, 32);
/* oklch */ color: oklch(51.3% 0.168 31.4);

Tailwind

colors: {
  custom: {
    50: '#d3735d',
    500: '#b33320',
    950: '#000000',
  },
}

SCSS

$custom: #b33320;
$custom-light: #d3735d;
$custom-dark: #000000;

JSON

{
  "hex": "#b33320",
  "rgb": {
    "r": 179,
    "g": 51,
    "b": 32
  },
  "hsl": {
    "h": 7.755,
    "s": 69.668,
    "l": 41.373
  },
  "oklch": {
    "l": 0.5134,
    "c": 0.16771,
    "h": 31.4
  },
  "luminance": 0.12056
}

Semantic roles & 50–950 ramp

primary

#B33320

secondary

#65BDCA

accent

#D6EC3B

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B33320

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

Preview Lab → · Contrast checker → · Palette generator →