#B33C33#B33C33

#B33C33 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.156 H 28.0°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B33C33
RGB	rgb(179, 60, 51)
HSL	hsl(4, 56%, 45%)
HSV	hsv(4, 72%, 70%)
CMYK	cmyk(0%, 66.5%, 71.5%, 29.8%)
CIE-LAB	lab(42.85, 47.68, 32.03)
CIE-LCH	lch(42.85, 57.44, 33.89°)
OKLab	oklab(52.56% 0.1379 0.0732)
OKLCH	oklch(52.56% 0.156 28)
XYZ	xyz(20.8060, 13.0574, 4.5561)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33C33 #33AAB3

analogous

#B3336A #B33C33 #B37C33

triadic

#B33C33 #33B33C #3C33B3

tetradic

#B33C33 #6AB333 #33AAB3 #7C33B3

square

#B33C33 #6AB333 #33AAB3 #7C33B3

split-complementary

#B33C33 #33B37C #336AB3

monochromatic

#541C18 #832C25 #B33C33 #CE5D55 #DC8B84

Accessibility & contrast

On white

5.82

#B33C33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B33C33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33C33

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33C33	#FFFFFF	#000000	##FFFFFF
##B33C33	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5531

Deuteranopia (green-blind)

#7B6F2F

Tritanopia (blue-blind)

#C51C3B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33c33;
/* rgb */ color: rgb(179, 60, 51);
/* oklch */ color: oklch(52.6% 0.156 28.0);

Tailwind

colors: {
  custom: {
    50: '#d1786b',
    500: '#b33c33',
    950: '#000000',
  },
}

SCSS

$custom: #b33c33;
$custom-light: #d1786b;
$custom-dark: #000000;

JSON

{
  "hex": "#b33c33",
  "rgb": {
    "r": 179,
    "g": 60,
    "b": 51
  },
  "hsl": {
    "h": 4.219,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.5256,
    "c": 0.15612,
    "h": 28
  },
  "luminance": 0.13054
}

Semantic roles & 50–950 ramp

primary

#B33C33

secondary

#7CC0C6

accent

#D4DF49

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33C33

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

Preview Lab → · Contrast checker → · Palette generator →