#B23138#B23138

#B23138 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.3% C 0.165 H 22.4°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B23138
RGB	rgb(178, 49, 56)
HSL	hsl(357, 57%, 45%)
HSV	hsv(357, 72%, 70%)
CMYK	cmyk(0%, 72.5%, 68.5%, 30.2%)
CIE-LAB	lab(41.14, 51.98, 26.96)
CIE-LCH	lch(41.14, 58.56, 27.42°)
OKLab	oklab(51.27% 0.1527 0.063)
OKLCH	oklch(51.27% 0.165 22.4)
XYZ	xyz(20.1744, 11.9501, 4.9849)
Luminance	0.1195 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23138 #31B2AB

analogous

#B23179 #B23138 #B26B31

triadic

#B23138 #38B231 #3138B2

tetradic

#B23138 #79B231 #31B2AB #6B31B2

square

#B23138 #79B231 #31B2AB #6B31B2

split-complementary

#B23138 #31B26B #3179B2

monochromatic

#52171A #822429 #B23138 #CF5158 #DC8186

Accessibility & contrast

On white

6.20

#B23138 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B23138 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23138

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23138	#FFFFFF	#000000	##FFFFFF
##B23138	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F37

Deuteranopia (green-blind)

#766B34

Tritanopia (blue-blind)

#C40035

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b23138;
/* rgb */ color: rgb(178, 49, 56);
/* oklch */ color: oklch(51.3% 0.165 22.4);

Tailwind

colors: {
  custom: {
    50: '#d1736e',
    500: '#b23138',
    950: '#000000',
  },
}

SCSS

$custom: #b23138;
$custom-light: #d1736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23138",
  "rgb": {
    "r": 178,
    "g": 49,
    "b": 56
  },
  "hsl": {
    "h": 356.744,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51268,
    "c": 0.16514,
    "h": 22.4
  },
  "luminance": 0.11947
}

Semantic roles & 50–950 ramp

primary

#B23138

secondary

#79C5C1

accent

#E0D848

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23138

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

Preview Lab → · Contrast checker → · Palette generator →