#B33F45#B33F45

#B33F45 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.151 H 20.9°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B33F45
RGB	rgb(179, 63, 69)
HSL	hsl(357, 48%, 47%)
HSV	hsv(357, 65%, 70%)
CMYK	cmyk(0%, 64.8%, 61.5%, 29.8%)
CIE-LAB	lab(43.61, 47.44, 22.21)
CIE-LCH	lch(43.61, 52.38, 25.08°)
OKLab	oklab(53.22% 0.1407 0.0537)
OKLCH	oklch(53.22% 0.151 20.9)
XYZ	xyz(21.4441, 13.5713, 7.1194)
Luminance	0.1357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F45 #3FB3AD

analogous

#B33F7F #B33F45 #B3733F

triadic

#B33F45 #45B33F #3F45B3

tetradic

#B33F45 #7FB33F #3FB3AD #733FB3

square

#B33F45 #7FB33F #3FB3AD #733FB3

split-complementary

#B33F45 #3FB373 #3F7FB3

monochromatic

#581F22 #862F34 #B33F45 #C9666B #D99397

Accessibility & contrast

On white

5.65

#B33F45 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B33F45 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F45

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F45	#FFFFFF	#000000	##FFFFFF
##B33F45	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5844

Deuteranopia (green-blind)

#7A7042

Tritanopia (blue-blind)

#C42642

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b33f45;
/* rgb */ color: rgb(179, 63, 69);
/* oklch */ color: oklch(53.2% 0.151 20.9);

Tailwind

colors: {
  custom: {
    50: '#d07a78',
    500: '#b33f45',
    950: '#000000',
  },
}

SCSS

$custom: #b33f45;
$custom-light: #d07a78;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f45",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 69
  },
  "hsl": {
    "h": 356.897,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53222,
    "c": 0.15061,
    "h": 20.9
  },
  "luminance": 0.13568
}

Semantic roles & 50–950 ramp

primary

#B33F45

secondary

#89C4C1

accent

#D8D150

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A09

muted

#837C7B

Preview Lab

Preview with #B33F45

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

Preview Lab → · Contrast checker → · Palette generator →