#B23B2C#B23B2C

#B23B2C is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.2% C 0.157 H 30.3°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B23B2C
RGB	rgb(178, 59, 44)
HSL	hsl(7, 60%, 44%)
HSV	hsv(7, 75%, 70%)
CMYK	cmyk(0%, 66.9%, 75.3%, 30.2%)
CIE-LAB	lab(42.43, 47.43, 35.52)
CIE-LCH	lch(42.43, 59.26, 36.82°)
OKLab	oklab(52.18% 0.1358 0.0794)
OKLCH	oklch(52.18% 0.157 30.3)
XYZ	xyz(20.3809, 12.7777, 3.7756)
Luminance	0.1278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23B2C #2CA3B2

analogous

#B22C60 #B23B2C #B27E2C

triadic

#B23B2C #2CB23B #3B2CB2

tetradic

#B23B2C #60B22C #2CA3B2 #7E2CB2

square

#B23B2C #60B22C #2CA3B2 #7E2CB2

split-complementary

#B23B2C #2CB27E #2C60B2

monochromatic

#501A14 #812B20 #B23B2C #D25849 #DE857A

Accessibility & contrast

On white

5.91

#B23B2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B23B2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23B2C

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23B2C	#FFFFFF	#000000	##FFFFFF
##B23B2C	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D542A

Deuteranopia (green-blind)

#7A6E28

Tritanopia (blue-blind)

#C41938

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23b2c;
/* rgb */ color: rgb(178, 59, 44);
/* oklch */ color: oklch(52.2% 0.157 30.3);

Tailwind

colors: {
  custom: {
    50: '#d17766',
    500: '#b23b2c',
    950: '#000000',
  },
}

SCSS

$custom: #b23b2c;
$custom-light: #d17766;
$custom-dark: #000000;

JSON

{
  "hex": "#b23b2c",
  "rgb": {
    "r": 178,
    "g": 59,
    "b": 44
  },
  "hsl": {
    "h": 6.716,
    "s": 60.36,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52181,
    "c": 0.15729,
    "h": 30.3
  },
  "luminance": 0.12775
}

Semantic roles & 50–950 ramp

primary

#B23B2C

secondary

#73BDC6

accent

#D2E444

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23B2C

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

Preview Lab → · Contrast checker → · Palette generator →