#B33919#B33919

#B33919 is a mid, vivid red. Relative luminance 0.126; OKLCH L 51.9% C 0.164 H 35.1°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#B33919
RGB	rgb(179, 57, 25)
HSL	hsl(12, 75%, 40%)
HSV	hsv(12, 86%, 70%)
CMYK	cmyk(0%, 68.2%, 86%, 29.8%)
CIE-LAB	lab(42.13, 47.98, 45.07)
CIE-LCH	lch(42.13, 65.83, 43.21°)
OKLab	oklab(51.94% 0.1339 0.0941)
OKLCH	oklch(51.94% 0.164 35.1)
XYZ	xyz(20.2314, 12.5832, 2.2830)
Luminance	0.1258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33919 #1993B3

analogous

#B31946 #B33919 #B38619

triadic

#B33919 #19B339 #3919B3

tetradic

#B33919 #46B319 #1993B3 #8619B3

square

#B33919 #46B319 #1993B3 #8619B3

split-complementary

#B33919 #19B386 #1946B3

monochromatic

#48170A #7D2812 #B33919 #E14F28 #E87B5E

Accessibility & contrast

On white

5.97

#B33919 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B33919 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33919

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33919	#FFFFFF	#000000	##FFFFFF
##B33919	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5213

Deuteranopia (green-blind)

#7B6D12

Tritanopia (blue-blind)

#C50D33

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33919;
/* rgb */ color: rgb(179, 57, 25);
/* oklch */ color: oklch(51.9% 0.164 35.1);

Tailwind

colors: {
  custom: {
    50: '#d3765a',
    500: '#b33919',
    950: '#000000',
  },
}

SCSS

$custom: #b33919;
$custom-light: #d3765a;
$custom-dark: #000000;

JSON

{
  "hex": "#b33919",
  "rgb": {
    "r": 179,
    "g": 57,
    "b": 25
  },
  "hsl": {
    "h": 12.468,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.51937,
    "c": 0.16368,
    "h": 35.1
  },
  "luminance": 0.1258
}

Semantic roles & 50–950 ramp

primary

#B33919

secondary

#5BB5CC

accent

#CBF236

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B33919

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

Preview Lab → · Contrast checker → · Palette generator →