#B7333F#B7333F

#B7333F is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.168 H 20.3°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B7333F
RGB	rgb(183, 51, 63)
HSL	hsl(355, 56%, 46%)
HSV	hsv(355, 72%, 72%)
CMYK	cmyk(0%, 72.1%, 65.6%, 28.2%)
CIE-LAB	lab(42.46, 53.21, 24.54)
CIE-LCH	lch(42.46, 58.60, 24.75°)
OKLab	oklab(52.46% 0.1574 0.0583)
OKLCH	oklch(52.46% 0.168 20.3)
XYZ	xyz(21.6117, 12.7970, 6.0337)
Luminance	0.1279 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7333F #33B7AB

analogous

#B73381 #B7333F #B76933

triadic

#B7333F #3FB733 #333FB7

tetradic

#B7333F #81B733 #33B7AB #6933B7

square

#B7333F #81B733 #33B7AB #6933B7

split-complementary

#B7333F #33B769 #3381B7

monochromatic

#57181E #87262F #B7333F #D05762 #DE878F

Accessibility & contrast

On white

5.90

#B7333F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B7333F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7333F

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7333F	#FFFFFF	#000000	##FFFFFF
##B7333F	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58523E

Deuteranopia (green-blind)

#796E3B

Tritanopia (blue-blind)

#C90339

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b7333f;
/* rgb */ color: rgb(183, 51, 63);
/* oklch */ color: oklch(52.5% 0.168 20.3);

Tailwind

colors: {
  custom: {
    50: '#d47474',
    500: '#b7333f',
    950: '#000000',
  },
}

SCSS

$custom: #b7333f;
$custom-light: #d47474;
$custom-dark: #000000;

JSON

{
  "hex": "#b7333f",
  "rgb": {
    "r": 183,
    "g": 51,
    "b": 63
  },
  "hsl": {
    "h": 354.545,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52459,
    "c": 0.16784,
    "h": 20.3
  },
  "luminance": 0.12794
}

Semantic roles & 50–950 ramp

primary

#B7333F

secondary

#7FC7C1

accent

#E0D248

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B7333F

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

Preview Lab → · Contrast checker → · Palette generator →