#B33E21#B33E21

#B33E21 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.158 H 34.9°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B33E21
RGB	rgb(179, 62, 33)
HSL	hsl(12, 69%, 42%)
HSV	hsv(12, 82%, 70%)
CMYK	cmyk(0%, 65.4%, 81.6%, 29.8%)
CIE-LAB	lab(42.98, 46.08, 42.02)
CIE-LCH	lch(42.98, 62.36, 42.36°)
OKLab	oklab(52.59% 0.1294 0.0902)
OKLCH	oklch(52.59% 0.158 34.9)
XYZ	xyz(20.5899, 13.1418, 2.8910)
Luminance	0.1314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E21 #2196B3

analogous

#B3214D #B33E21 #B38721

triadic

#B33E21 #21B33E #3E21B3

tetradic

#B33E21 #4DB321 #2196B3 #8721B3

square

#B33E21 #4DB321 #2196B3 #8721B3

split-complementary

#B33E21 #21B387 #214DB3

monochromatic

#4C1A0E #7F2C17 #B33E21 #DA5737 #E4836B

Accessibility & contrast

On white

5.79

#B33E21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B33E21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E21

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E21	#FFFFFF	#000000	##FFFFFF
##B33E21	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60551C

Deuteranopia (green-blind)

#7D6F1C

Tritanopia (blue-blind)

#C51C38

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33e21;
/* rgb */ color: rgb(179, 62, 33);
/* oklch */ color: oklch(52.6% 0.158 34.9);

Tailwind

colors: {
  custom: {
    50: '#d2795f',
    500: '#b33e21',
    950: '#000000',
  },
}

SCSS

$custom: #b33e21;
$custom-light: #d2795f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e21",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 33
  },
  "hsl": {
    "h": 11.918,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.52593,
    "c": 0.15774,
    "h": 34.9
  },
  "luminance": 0.13139
}

Semantic roles & 50–950 ramp

primary

#B33E21

secondary

#66B6CA

accent

#C9EC3C

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B33E21

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

Preview Lab → · Contrast checker → · Palette generator →