#B23237#B23237

#B23237 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.164 H 23.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B23237
RGB	rgb(178, 50, 55)
HSL	hsl(358, 56%, 45%)
HSV	hsv(358, 72%, 70%)
CMYK	cmyk(0%, 71.9%, 69.1%, 30.2%)
CIE-LAB	lab(41.26, 51.55, 27.72)
CIE-LCH	lch(41.26, 58.53, 28.26°)
OKLab	oklab(51.35% 0.1511 0.0645)
OKLCH	oklch(51.35% 0.164 23.1)
XYZ	xyz(20.1925, 12.0250, 4.8715)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23237 #32B2AD

analogous

#B23277 #B23237 #B26D32

triadic

#B23237 #37B232 #3237B2

tetradic

#B23237 #77B232 #32B2AD #6D32B2

square

#B23237 #77B232 #32B2AD #6D32B2

split-complementary

#B23237 #32B26D #3277B2

monochromatic

#521719 #822528 #B23237 #CF5357 #DC8286

Accessibility & contrast

On white

6.17

#B23237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B23237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23237

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23237	#FFFFFF	#000000	##FFFFFF
##B23237	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565036

Deuteranopia (green-blind)

#766B33

Tritanopia (blue-blind)

#C40135

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b23237;
/* rgb */ color: rgb(178, 50, 55);
/* oklch */ color: oklch(51.4% 0.164 23.1);

Tailwind

colors: {
  custom: {
    50: '#d1736e',
    500: '#b23237',
    950: '#000000',
  },
}

SCSS

$custom: #b23237;
$custom-light: #d1736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23237",
  "rgb": {
    "r": 178,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.656,
    "s": 56.14,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51352,
    "c": 0.16427,
    "h": 23.1
  },
  "luminance": 0.12022
}

Semantic roles & 50–950 ramp

primary

#B23237

secondary

#7BC5C2

accent

#DFDA48

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23237

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

Preview Lab → · Contrast checker → · Palette generator →