#B23A2C#B23A2C

#B23A2C is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.1% C 0.158 H 29.9°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B23A2C
RGB	rgb(178, 58, 44)
HSL	hsl(6, 60%, 44%)
HSV	hsv(6, 75%, 70%)
CMYK	cmyk(0%, 67.4%, 75.3%, 30.2%)
CIE-LAB	lab(42.27, 47.85, 35.35)
CIE-LCH	lch(42.27, 59.49, 36.45°)
OKLab	oklab(52.06% 0.1371 0.079)
OKLCH	oklch(52.06% 0.158 29.9)
XYZ	xyz(20.3300, 12.6759, 3.7586)
Luminance	0.1267 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23A2C #2CA4B2

analogous

#B22C61 #B23A2C #B27D2C

triadic

#B23A2C #2CB23A #3A2CB2

tetradic

#B23A2C #61B22C #2CA4B2 #7D2CB2

square

#B23A2C #61B22C #2CA4B2 #7D2CB2

split-complementary

#B23A2C #2CB27D #2C61B2

monochromatic

#501A14 #812A20 #B23A2C #D25749 #DE857A

Accessibility & contrast

On white

5.94

#B23A2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B23A2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23A2C

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23A2C	#FFFFFF	#000000	##FFFFFF
##B23A2C	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532A

Deuteranopia (green-blind)

#7A6D28

Tritanopia (blue-blind)

#C41638

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23a2c;
/* rgb */ color: rgb(178, 58, 44);
/* oklch */ color: oklch(52.1% 0.158 29.9);

Tailwind

colors: {
  custom: {
    50: '#d17766',
    500: '#b23a2c',
    950: '#000000',
  },
}

SCSS

$custom: #b23a2c;
$custom-light: #d17766;
$custom-dark: #000000;

JSON

{
  "hex": "#b23a2c",
  "rgb": {
    "r": 178,
    "g": 58,
    "b": 44
  },
  "hsl": {
    "h": 6.269,
    "s": 60.36,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52064,
    "c": 0.15824,
    "h": 29.9
  },
  "luminance": 0.12673
}

Semantic roles & 50–950 ramp

primary

#B23A2C

secondary

#73BEC6

accent

#D3E444

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23A2C

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

Preview Lab → · Contrast checker → · Palette generator →