#B23231#B23231

#B23231 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.165 H 25.5°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B23231
RGB	rgb(178, 50, 49)
HSL	hsl(0, 57%, 45%)
HSV	hsv(0, 72%, 70%)
CMYK	cmyk(0%, 71.9%, 72.5%, 30.2%)
CIE-LAB	lab(41.17, 51.26, 31.21)
CIE-LCH	lch(41.17, 60.01, 31.34°)
OKLab	oklab(51.26% 0.1489 0.0711)
OKLCH	oklch(51.26% 0.165 25.5)
XYZ	xyz(20.0573, 11.9709, 4.1596)
Luminance	0.1197 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23231 #31B1B2

analogous

#B23171 #B23231 #B27331

triadic

#B23231 #31B232 #3231B2

tetradic

#B23231 #71B231 #31B1B2 #7331B2

square

#B23231 #71B231 #31B1B2 #7331B2

split-complementary

#B23231 #31B273 #3171B2

monochromatic

#521717 #822524 #B23231 #CF5251 #DC8281

Accessibility & contrast

On white

6.19

#B23231 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B23231 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23231

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23231	#FFFFFF	#000000	##FFFFFF
##B23231	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F30

Deuteranopia (green-blind)

#776B2D

Tritanopia (blue-blind)

#C40033

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b23231;
/* rgb */ color: rgb(178, 50, 49);
/* oklch */ color: oklch(51.3% 0.165 25.5);

Tailwind

colors: {
  custom: {
    50: '#d17369',
    500: '#b23231',
    950: '#000000',
  },
}

SCSS

$custom: #b23231;
$custom-light: #d17369;
$custom-dark: #000000;

JSON

{
  "hex": "#b23231",
  "rgb": {
    "r": 178,
    "g": 50,
    "b": 49
  },
  "hsl": {
    "h": 0.465,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5126,
    "c": 0.16497,
    "h": 25.5
  },
  "luminance": 0.11968
}

Semantic roles & 50–950 ramp

primary

#B23231

secondary

#79C5C5

accent

#DFE048

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B23231

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

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