#B23A3D#B23A3D

#B23A3D is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.156 H 22.9°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B23A3D
RGB	rgb(178, 58, 61)
HSL	hsl(359, 51%, 46%)
HSV	hsv(359, 67%, 70%)
CMYK	cmyk(0%, 67.4%, 65.7%, 30.2%)
CIE-LAB	lab(42.51, 48.72, 25.62)
CIE-LCH	lch(42.51, 55.05, 27.74°)
OKLab	oklab(52.32% 0.1434 0.0607)
OKLCH	oklch(52.32% 0.156 22.9)
XYZ	xyz(20.7176, 12.8309, 5.7997)
Luminance	0.1283 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23A3D #3AB2AF

analogous

#B23A79 #B23A3D #B2733A

triadic

#B23A3D #3DB23A #3A3DB2

tetradic

#B23A3D #79B23A #3AB2AF #733AB2

square

#B23A3D #79B23A #3AB2AF #733AB2

split-complementary

#B23A3D #3AB273 #3A79B2

monochromatic

#561C1D #842B2D #B23A3D #CB5F61 #DA8D8F

Accessibility & contrast

On white

5.89

#B23A3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B23A3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23A3D

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23A3D	#FFFFFF	#000000	##FFFFFF
##B23A3D	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543C

Deuteranopia (green-blind)

#786E3A

Tritanopia (blue-blind)

#C31C3C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23a3d;
/* rgb */ color: rgb(178, 58, 61);
/* oklch */ color: oklch(52.3% 0.156 22.9);

Tailwind

colors: {
  custom: {
    50: '#d07772',
    500: '#b23a3d',
    950: '#000000',
  },
}

SCSS

$custom: #b23a3d;
$custom-light: #d07772;
$custom-dark: #000000;

JSON

{
  "hex": "#b23a3d",
  "rgb": {
    "r": 178,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 358.5,
    "s": 50.847,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52317,
    "c": 0.15566,
    "h": 22.9
  },
  "luminance": 0.12828
}

Semantic roles & 50–950 ramp

primary

#B23A3D

secondary

#83C4C3

accent

#DAD74D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B23A3D

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

Preview Lab → · Contrast checker → · Palette generator →