#B33F47#B33F47

#B33F47 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.150 H 19.9°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B33F47
RGB	rgb(179, 63, 71)
HSL	hsl(356, 48%, 47%)
HSV	hsv(356, 65%, 70%)
CMYK	cmyk(0%, 64.8%, 60.3%, 29.8%)
CIE-LAB	lab(43.65, 47.58, 21.03)
CIE-LCH	lch(43.65, 52.02, 23.85°)
OKLab	oklab(53.26% 0.1415 0.0512)
OKLCH	oklch(53.26% 0.15 19.9)
XYZ	xyz(21.5073, 13.5965, 7.4519)
Luminance	0.1359 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F47 #3FB3AB

analogous

#B33F81 #B33F47 #B3713F

triadic

#B33F47 #47B33F #3F47B3

tetradic

#B33F47 #81B33F #3FB3AB #713FB3

square

#B33F47 #81B33F #3FB3AB #713FB3

split-complementary

#B33F47 #3FB371 #3F81B3

monochromatic

#581F23 #862F35 #B33F47 #C9666D #D99398

Accessibility & contrast

On white

5.65

#B33F47 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B33F47 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F47

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F47	#FFFFFF	#000000	##FFFFFF
##B33F47	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5847

Deuteranopia (green-blind)

#7A7044

Tritanopia (blue-blind)

#C42743

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b33f47;
/* rgb */ color: rgb(179, 63, 71);
/* oklch */ color: oklch(53.3% 0.150 19.9);

Tailwind

colors: {
  custom: {
    50: '#d07a7a',
    500: '#b33f47',
    950: '#000000',
  },
}

SCSS

$custom: #b33f47;
$custom-light: #d07a7a;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f47",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 71
  },
  "hsl": {
    "h": 355.862,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53262,
    "c": 0.15047,
    "h": 19.9
  },
  "luminance": 0.13594
}

Semantic roles & 50–950 ramp

primary

#B33F47

secondary

#89C4C0

accent

#D8CE50

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A09

muted

#837C7B

Preview Lab

Preview with #B33F47

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

Preview Lab → · Contrast checker → · Palette generator →