#B23637#B23637

#B23637 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.8% C 0.160 H 24.3°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B23637
RGB	rgb(178, 54, 55)
HSL	hsl(360, 53%, 45%)
HSV	hsv(360, 70%, 70%)
CMYK	cmyk(0%, 69.7%, 69.1%, 30.2%)
CIE-LAB	lab(41.82, 50.01, 28.40)
CIE-LCH	lch(41.82, 57.51, 29.59°)
OKLab	oklab(51.77% 0.1462 0.066)
OKLCH	oklch(51.77% 0.16 24.3)
XYZ	xyz(20.3710, 12.3821, 4.9310)
Luminance	0.1238 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23637 #36B2B1

analogous

#B23675 #B23637 #B27336

triadic

#B23637 #37B236 #3637B2

tetradic

#B23637 #75B236 #36B2B1 #7336B2

square

#B23637 #75B236 #36B2B1 #7336B2

split-complementary

#B23637 #36B273 #3675B2

monochromatic

#541A1A #832828 #B23637 #CD595A #DB8888

Accessibility & contrast

On white

6.04

#B23637 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B23637 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23637

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23637	#FFFFFF	#000000	##FFFFFF
##B23637	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595236

Deuteranopia (green-blind)

#786C33

Tritanopia (blue-blind)

#C41038

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b23637;
/* rgb */ color: rgb(178, 54, 55);
/* oklch */ color: oklch(51.8% 0.160 24.3);

Tailwind

colors: {
  custom: {
    50: '#d1756e',
    500: '#b23637',
    950: '#000000',
  },
}

SCSS

$custom: #b23637;
$custom-light: #d1756e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23637",
  "rgb": {
    "r": 178,
    "g": 54,
    "b": 55
  },
  "hsl": {
    "h": 359.516,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51771,
    "c": 0.1604,
    "h": 24.3
  },
  "luminance": 0.12379
}

Semantic roles & 50–950 ramp

primary

#B23637

secondary

#7FC5C4

accent

#DDDC4B

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23637

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

Preview Lab → · Contrast checker → · Palette generator →