#B33B47#B33B47

#B33B47 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.155 H 18.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B33B47
RGB	rgb(179, 59, 71)
HSL	hsl(354, 50%, 47%)
HSV	hsv(354, 67%, 70%)
CMYK	cmyk(0%, 67%, 60.3%, 29.8%)
CIE-LAB	lab(43.02, 49.29, 20.21)
CIE-LCH	lch(43.02, 53.27, 22.29°)
OKLab	oklab(52.79% 0.1469 0.0493)
OKLCH	oklch(52.79% 0.155 18.5)
XYZ	xyz(21.2937, 13.1695, 7.3807)
Luminance	0.1317 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33B47 #3BB3A7

analogous

#B33B83 #B33B47 #B36B3B

triadic

#B33B47 #47B33B #3B47B3

tetradic

#B33B47 #83B33B #3BB3A7 #6B3BB3

square

#B33B47 #83B33B #3BB3A7 #6B3BB3

split-complementary

#B33B47 #3BB36B #3B83B3

monochromatic

#571D22 #852C35 #B33B47 #CB606B #DA8E96

Accessibility & contrast

On white

5.78

#B33B47 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B33B47 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33B47

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33B47	#FFFFFF	#000000	##FFFFFF
##B33B47	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5647

Deuteranopia (green-blind)

#786F44

Tritanopia (blue-blind)

#C42040

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33b47;
/* rgb */ color: rgb(179, 59, 71);
/* oklch */ color: oklch(52.8% 0.155 18.5);

Tailwind

colors: {
  custom: {
    50: '#d0787a',
    500: '#b33b47',
    950: '#000000',
  },
}

SCSS

$custom: #b33b47;
$custom-light: #d0787a;
$custom-dark: #000000;

JSON

{
  "hex": "#b33b47",
  "rgb": {
    "r": 179,
    "g": 59,
    "b": 71
  },
  "hsl": {
    "h": 354,
    "s": 50.42,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5279,
    "c": 0.15496,
    "h": 18.5
  },
  "luminance": 0.13167
}

Semantic roles & 50–950 ramp

primary

#B33B47

secondary

#85C5BE

accent

#DACC4E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B33B47

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

Preview Lab → · Contrast checker → · Palette generator →