#B23742#B23742

#B23742 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.158 H 19.6°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#B23742
RGB	rgb(178, 55, 66)
HSL	hsl(355, 53%, 46%)
HSV	hsv(355, 69%, 70%)
CMYK	cmyk(0%, 69.1%, 62.9%, 30.2%)
CIE-LAB	lab(42.14, 50.26, 22.11)
CIE-LCH	lch(42.14, 54.91, 23.75°)
OKLab	oklab(52.07% 0.1492 0.0532)
OKLCH	oklch(52.07% 0.158 19.6)
XYZ	xyz(20.7117, 12.5936, 6.4934)
Luminance	0.1259 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23742 #37B2A7

analogous

#B2377F #B23742 #B26937

triadic

#B23742 #42B237 #3742B2

tetradic

#B23742 #7FB237 #37B2A7 #6937B2

square

#B23742 #7FB237 #37B2A7 #6937B2

split-complementary

#B23742 #37B269 #377FB2

monochromatic

#541A1F #832931 #B23742 #CC5A64 #DB8990

Accessibility & contrast

On white

5.97

#B23742 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B23742 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23742

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23742	#FFFFFF	#000000	##FFFFFF
##B23742	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585342

Deuteranopia (green-blind)

#776D3F

Tritanopia (blue-blind)

#C3173C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b23742;
/* rgb */ color: rgb(178, 55, 66);
/* oklch */ color: oklch(52.1% 0.158 19.6);

Tailwind

colors: {
  custom: {
    50: '#d07676',
    500: '#b23742',
    950: '#000000',
  },
}

SCSS

$custom: #b23742;
$custom-light: #d07676;
$custom-dark: #000000;

JSON

{
  "hex": "#b23742",
  "rgb": {
    "r": 178,
    "g": 55,
    "b": 66
  },
  "hsl": {
    "h": 354.634,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52074,
    "c": 0.15843,
    "h": 19.6
  },
  "luminance": 0.12591
}

Semantic roles & 50–950 ramp

primary

#B23742

secondary

#80C5BE

accent

#DCCF4C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B23742

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

Preview Lab → · Contrast checker → · Palette generator →