#B33A33#B33A33

#B33A33 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.158 H 27.3°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B33A33
RGB	rgb(179, 58, 51)
HSL	hsl(3, 56%, 45%)
HSV	hsv(3, 72%, 70%)
CMYK	cmyk(0%, 67.6%, 71.5%, 29.8%)
CIE-LAB	lab(42.54, 48.52, 31.67)
CIE-LCH	lch(42.54, 57.94, 33.13°)
OKLab	oklab(52.33% 0.1405 0.0725)
OKLCH	oklch(52.33% 0.158 27.3)
XYZ	xyz(20.7032, 12.8518, 4.5218)
Luminance	0.1285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A33 #33ACB3

analogous

#B3336C #B33A33 #B37A33

triadic

#B33A33 #33B33A #3A33B3

tetradic

#B33A33 #6CB333 #33ACB3 #7A33B3

square

#B33A33 #6CB333 #33ACB3 #7A33B3

split-complementary

#B33A33 #33B37A #336CB3

monochromatic

#541B18 #832B25 #B33A33 #CE5B55 #DC8984

Accessibility & contrast

On white

5.88

#B33A33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B33A33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A33

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A33	#FFFFFF	#000000	##FFFFFF
##B33A33	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5431

Deuteranopia (green-blind)

#7A6E2F

Tritanopia (blue-blind)

#C51839

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33a33;
/* rgb */ color: rgb(179, 58, 51);
/* oklch */ color: oklch(52.3% 0.158 27.3);

Tailwind

colors: {
  custom: {
    50: '#d1776b',
    500: '#b33a33',
    950: '#000000',
  },
}

SCSS

$custom: #b33a33;
$custom-light: #d1776b;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a33",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 51
  },
  "hsl": {
    "h": 3.281,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52327,
    "c": 0.1581,
    "h": 27.3
  },
  "luminance": 0.12849
}

Semantic roles & 50–950 ramp

primary

#B33A33

secondary

#7CC2C6

accent

#D7DF49

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33A33

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

Preview Lab → · Contrast checker → · Palette generator →