#B33819#B33819

#B33819 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.165 H 34.8°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B33819
RGB	rgb(179, 56, 25)
HSL	hsl(12, 75%, 40%)
HSV	hsv(12, 86%, 70%)
CMYK	cmyk(0%, 68.7%, 86%, 29.8%)
CIE-LAB	lab(41.98, 48.39, 44.94)
CIE-LCH	lch(41.98, 66.04, 42.88°)
OKLab	oklab(51.82% 0.1352 0.0938)
OKLCH	oklch(51.82% 0.165 34.8)
XYZ	xyz(20.1824, 12.4853, 2.2667)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33819 #1994B3

analogous

#B31947 #B33819 #B38519

triadic

#B33819 #19B338 #3819B3

tetradic

#B33819 #47B319 #1994B3 #8519B3

square

#B33819 #47B319 #1994B3 #8519B3

split-complementary

#B33819 #19B385 #1947B3

monochromatic

#48160A #7D2712 #B33819 #E14D28 #E87A5E

Accessibility & contrast

On white

6.01

#B33819 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B33819 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33819

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33819	#FFFFFF	#000000	##FFFFFF
##B33819	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)

#5D5213

Deuteranopia (green-blind)

#7B6D11

Tritanopia (blue-blind)

#C50A32

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33819;
/* rgb */ color: rgb(179, 56, 25);
/* oklch */ color: oklch(51.8% 0.165 34.8);

Tailwind

colors: {
  custom: {
    50: '#d3765a',
    500: '#b33819',
    950: '#000000',
  },
}

SCSS

$custom: #b33819;
$custom-light: #d3765a;
$custom-dark: #000000;

JSON

{
  "hex": "#b33819",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 25
  },
  "hsl": {
    "h": 12.078,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.51823,
    "c": 0.16454,
    "h": 34.8
  },
  "luminance": 0.12482
}

Semantic roles & 50–950 ramp

primary

#B33819

secondary

#5BB6CC

accent

#CCF236

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B33819

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

Preview Lab → · Contrast checker → · Palette generator →