#B23337#B23337

#B23337 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.163 H 23.4°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#B23337
RGB	rgb(178, 51, 55)
HSL	hsl(358, 55%, 45%)
HSV	hsv(358, 71%, 70%)
CMYK	cmyk(0%, 71.3%, 69.1%, 30.2%)
CIE-LAB	lab(41.39, 51.18, 27.88)
CIE-LCH	lch(41.39, 58.28, 28.58°)
OKLab	oklab(51.45% 0.1499 0.0649)
OKLCH	oklch(51.45% 0.163 23.4)
XYZ	xyz(20.2357, 12.1115, 4.8859)
Luminance	0.1211 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23337 #33B2AE

analogous

#B23377 #B23337 #B26E33

triadic

#B23337 #37B233 #3337B2

tetradic

#B23337 #77B233 #33B2AE #6E33B2

square

#B23337 #77B233 #33B2AE #6E33B2

split-complementary

#B23337 #33B26E #3377B2

monochromatic

#53181A #822528 #B23337 #CE5458 #DC8486

Accessibility & contrast

On white

6.14

#B23337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B23337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23337

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23337	#FFFFFF	#000000	##FFFFFF
##B23337	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575036

Deuteranopia (green-blind)

#776C33

Tritanopia (blue-blind)

#C40536

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b23337;
/* rgb */ color: rgb(178, 51, 55);
/* oklch */ color: oklch(51.5% 0.163 23.4);

Tailwind

colors: {
  custom: {
    50: '#d1736e',
    500: '#b23337',
    950: '#000000',
  },
}

SCSS

$custom: #b23337;
$custom-light: #d1736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23337",
  "rgb": {
    "r": 178,
    "g": 51,
    "b": 55
  },
  "hsl": {
    "h": 358.11,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51454,
    "c": 0.16333,
    "h": 23.4
  },
  "luminance": 0.12108
}

Semantic roles & 50–950 ramp

primary

#B23337

secondary

#7CC5C3

accent

#DFDA49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23337

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

Preview Lab → · Contrast checker → · Palette generator →