#B23437#B23437

#B23437 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.6% C 0.162 H 23.7°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#B23437
RGB	rgb(178, 52, 55)
HSL	hsl(359, 55%, 45%)
HSV	hsv(359, 71%, 70%)
CMYK	cmyk(0%, 70.8%, 69.1%, 30.2%)
CIE-LAB	lab(41.53, 50.79, 28.05)
CIE-LCH	lch(41.53, 58.02, 28.91°)
OKLab	oklab(51.56% 0.1487 0.0652)
OKLCH	oklch(51.56% 0.162 23.7)
XYZ	xyz(20.2799, 12.1998, 4.9006)
Luminance	0.1220 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23437 #34B2AF

analogous

#B23476 #B23437 #B27034

triadic

#B23437 #37B234 #3437B2

tetradic

#B23437 #76B234 #34B2AF #7034B2

square

#B23437 #76B234 #34B2AF #7034B2

split-complementary

#B23437 #34B270 #3476B2

monochromatic

#53181A #832628 #B23437 #CE5659 #DB8587

Accessibility & contrast

On white

6.11

#B23437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B23437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23437

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23437	#FFFFFF	#000000	##FFFFFF
##B23437	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575136

Deuteranopia (green-blind)

#776C33

Tritanopia (blue-blind)

#C40936

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b23437;
/* rgb */ color: rgb(178, 52, 55);
/* oklch */ color: oklch(51.6% 0.162 23.7);

Tailwind

colors: {
  custom: {
    50: '#d1746e',
    500: '#b23437',
    950: '#000000',
  },
}

SCSS

$custom: #b23437;
$custom-light: #d1746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23437",
  "rgb": {
    "r": 178,
    "g": 52,
    "b": 55
  },
  "hsl": {
    "h": 358.571,
    "s": 54.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51558,
    "c": 0.16236,
    "h": 23.7
  },
  "luminance": 0.12197
}

Semantic roles & 50–950 ramp

primary

#B23437

secondary

#7DC5C3

accent

#DEDB4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23437

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

Preview Lab → · Contrast checker → · Palette generator →