#B33818#B33818

#B33818 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.165 H 35.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B33818
RGB	rgb(179, 56, 24)
HSL	hsl(12, 76%, 40%)
HSV	hsv(12, 87%, 70%)
CMYK	cmyk(0%, 68.7%, 86.6%, 29.8%)
CIE-LAB	lab(41.97, 48.37, 45.39)
CIE-LCH	lch(41.97, 66.33, 43.18°)
OKLab	oklab(51.82% 0.135 0.0944)
OKLCH	oklch(51.82% 0.165 35)
XYZ	xyz(20.1718, 12.4811, 2.2109)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33818 #1893B3

analogous

#B31846 #B33818 #B38618

triadic

#B33818 #18B338 #3818B3

tetradic

#B33818 #46B318 #1893B3 #8618B3

square

#B33818 #46B318 #1893B3 #8618B3

split-complementary

#B33818 #18B386 #1846B3

monochromatic

#47160A #7D2711 #B33818 #E24D26 #E9795C

Accessibility & contrast

On white

6.01

#B33818 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B33818 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33818

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33818	#FFFFFF	#000000	##FFFFFF
##B33818	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5212

Deuteranopia (green-blind)

#7B6D10

Tritanopia (blue-blind)

#C50932

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33818;
/* rgb */ color: rgb(179, 56, 24);
/* oklch */ color: oklch(51.8% 0.165 35.0);

Tailwind

colors: {
  custom: {
    50: '#d37659',
    500: '#b33818',
    950: '#000000',
  },
}

SCSS

$custom: #b33818;
$custom-light: #d37659;
$custom-dark: #000000;

JSON

{
  "hex": "#b33818",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 24
  },
  "hsl": {
    "h": 12.387,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.51816,
    "c": 0.16471,
    "h": 35
  },
  "luminance": 0.12478
}

Semantic roles & 50–950 ramp

primary

#B33818

secondary

#5AB5CD

accent

#CCF335

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B33818

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

Preview Lab → · Contrast checker → · Palette generator →