#B33933#B33933

#B33933 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.159 H 26.9°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B33933
RGB	rgb(179, 57, 51)
HSL	hsl(3, 56%, 45%)
HSV	hsv(3, 72%, 70%)
CMYK	cmyk(0%, 68.2%, 71.5%, 29.8%)
CIE-LAB	lab(42.39, 48.93, 31.49)
CIE-LCH	lch(42.39, 58.19, 32.77°)
OKLab	oklab(52.21% 0.1418 0.0721)
OKLCH	oklch(52.21% 0.159 26.9)
XYZ	xyz(20.6533, 12.7520, 4.5052)
Luminance	0.1275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33933 #33ADB3

analogous

#B3336D #B33933 #B37933

triadic

#B33933 #33B339 #3933B3

tetradic

#B33933 #6DB333 #33ADB3 #7933B3

square

#B33933 #6DB333 #33ADB3 #7933B3

split-complementary

#B33933 #33B379 #336DB3

monochromatic

#541B18 #832A25 #B33933 #CE5A55 #DC8884

Accessibility & contrast

On white

5.92

#B33933 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B33933 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33933

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33933	#FFFFFF	#000000	##FFFFFF
##B33933	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5331

Deuteranopia (green-blind)

#7A6E2F

Tritanopia (blue-blind)

#C51539

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33933;
/* rgb */ color: rgb(179, 57, 51);
/* oklch */ color: oklch(52.2% 0.159 26.9);

Tailwind

colors: {
  custom: {
    50: '#d1776b',
    500: '#b33933',
    950: '#000000',
  },
}

SCSS

$custom: #b33933;
$custom-light: #d1776b;
$custom-dark: #000000;

JSON

{
  "hex": "#b33933",
  "rgb": {
    "r": 179,
    "g": 57,
    "b": 51
  },
  "hsl": {
    "h": 2.813,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52213,
    "c": 0.15908,
    "h": 26.9
  },
  "luminance": 0.12749
}

Semantic roles & 50–950 ramp

primary

#B33933

secondary

#7CC2C6

accent

#D8DF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33933

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

Preview Lab → · Contrast checker → · Palette generator →