#B33833#B33833

#B33833 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.1% C 0.160 H 26.6°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B33833
RGB	rgb(179, 56, 51)
HSL	hsl(2, 56%, 45%)
HSV	hsv(2, 72%, 70%)
CMYK	cmyk(0%, 68.7%, 71.5%, 29.8%)
CIE-LAB	lab(42.24, 49.34, 31.32)
CIE-LCH	lch(42.24, 58.44, 32.41°)
OKLab	oklab(52.1% 0.1431 0.0717)
OKLCH	oklch(52.1% 0.16 26.6)
XYZ	xyz(20.6044, 12.6541, 4.4889)
Luminance	0.1265 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33833 #33AEB3

analogous

#B3336E #B33833 #B37833

triadic

#B33833 #33B338 #3833B3

tetradic

#B33833 #6EB333 #33AEB3 #7833B3

square

#B33833 #6EB333 #33AEB3 #7833B3

split-complementary

#B33833 #33B378 #336EB3

monochromatic

#541A18 #832925 #B33833 #CE5955 #DC8884

Accessibility & contrast

On white

5.95

#B33833 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B33833 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33833

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33833	#FFFFFF	#000000	##FFFFFF
##B33833	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5331

Deuteranopia (green-blind)

#796E2F

Tritanopia (blue-blind)

#C51338

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33833;
/* rgb */ color: rgb(179, 56, 51);
/* oklch */ color: oklch(52.1% 0.160 26.6);

Tailwind

colors: {
  custom: {
    50: '#d1766b',
    500: '#b33833',
    950: '#000000',
  },
}

SCSS

$custom: #b33833;
$custom-light: #d1766b;
$custom-dark: #000000;

JSON

{
  "hex": "#b33833",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 51
  },
  "hsl": {
    "h": 2.344,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52101,
    "c": 0.16006,
    "h": 26.6
  },
  "luminance": 0.12651
}

Semantic roles & 50–950 ramp

primary

#B33833

secondary

#7CC3C6

accent

#D9DF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33833

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

Preview Lab → · Contrast checker → · Palette generator →