#B33316#B33316

#B33316 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.169 H 33.8°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B33316
RGB	rgb(179, 51, 22)
HSL	hsl(11, 78%, 39%)
HSV	hsv(11, 88%, 70%)
CMYK	cmyk(0%, 71.5%, 87.7%, 29.8%)
CIE-LAB	lab(41.24, 50.30, 45.66)
CIE-LCH	lch(41.24, 67.93, 42.23°)
OKLab	oklab(51.26% 0.1406 0.0942)
OKLCH	oklch(51.26% 0.169 33.8)
XYZ	xyz(19.9215, 12.0124, 2.0286)
Luminance	0.1201 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33316 #1696B3

analogous

#B31648 #B33316 #B38216

triadic

#B33316 #16B333 #3316B3

tetradic

#B33316 #48B316 #1696B3 #8216B3

square

#B33316 #48B316 #1696B3 #8216B3

split-complementary

#B33316 #16B382 #1648B3

monochromatic

#461409 #7C230F #B33316 #E44622 #EB7459

Accessibility & contrast

On white

6.17

#B33316 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B33316 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33316

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33316	#FFFFFF	#000000	##FFFFFF
##B33316	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F10

Deuteranopia (green-blind)

#796C0D

Tritanopia (blue-blind)

#C6002E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33316;
/* rgb */ color: rgb(179, 51, 22);
/* oklch */ color: oklch(51.3% 0.169 33.8);

Tailwind

colors: {
  custom: {
    50: '#d37357',
    500: '#b33316',
    950: '#000000',
  },
}

SCSS

$custom: #b33316;
$custom-light: #d37357;
$custom-dark: #000000;

JSON

{
  "hex": "#b33316",
  "rgb": {
    "r": 179,
    "g": 51,
    "b": 22
  },
  "hsl": {
    "h": 11.083,
    "s": 78.109,
    "l": 39.412
  },
  "oklch": {
    "l": 0.51261,
    "c": 0.16924,
    "h": 33.8
  },
  "luminance": 0.12009
}

Semantic roles & 50–950 ramp

primary

#B33316

secondary

#57B8CE

accent

#D1F533

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160903

muted

#847B78

Preview Lab

Preview with #B33316

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

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