#B23A42#B23A42

#B23A42 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.155 H 20.6°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B23A42
RGB	rgb(178, 58, 66)
HSL	hsl(356, 51%, 46%)
HSV	hsv(356, 67%, 70%)
CMYK	cmyk(0%, 67.4%, 62.9%, 30.2%)
CIE-LAB	lab(42.59, 49.04, 22.69)
CIE-LCH	lch(42.59, 54.03, 24.83°)
OKLab	oklab(52.41% 0.1453 0.0546)
OKLCH	oklch(52.41% 0.155 20.6)
XYZ	xyz(20.8586, 12.8873, 6.5423)
Luminance	0.1288 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23A42 #3AB2AA

analogous

#B23A7E #B23A42 #B26E3A

triadic

#B23A42 #42B23A #3A42B2

tetradic

#B23A42 #7EB23A #3AB2AA #6E3AB2

square

#B23A42 #7EB23A #3AB2AA #6E3AB2

split-complementary

#B23A42 #3AB26E #3A7EB2

monochromatic

#561C20 #842B31 #B23A42 #CB5F66 #DA8D92

Accessibility & contrast

On white

5.87

#B23A42 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B23A42 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23A42

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23A42	#FFFFFF	#000000	##FFFFFF
##B23A42	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5441

Deuteranopia (green-blind)

#786E3F

Tritanopia (blue-blind)

#C31D3E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b23a42;
/* rgb */ color: rgb(178, 58, 66);
/* oklch */ color: oklch(52.4% 0.155 20.6);

Tailwind

colors: {
  custom: {
    50: '#d07776',
    500: '#b23a42',
    950: '#000000',
  },
}

SCSS

$custom: #b23a42;
$custom-light: #d07776;
$custom-dark: #000000;

JSON

{
  "hex": "#b23a42",
  "rgb": {
    "r": 178,
    "g": 58,
    "b": 66
  },
  "hsl": {
    "h": 356,
    "s": 50.847,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52409,
    "c": 0.15523,
    "h": 20.6
  },
  "luminance": 0.12884
}

Semantic roles & 50–950 ramp

primary

#B23A42

secondary

#83C4C0

accent

#DAD14D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B23A42

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

Preview Lab → · Contrast checker → · Palette generator →