#B13237#B13237

#B13237 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.163 H 23.1°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#B13237
RGB	rgb(177, 50, 55)
HSL	hsl(358, 56%, 45%)
HSV	hsv(358, 72%, 69%)
CMYK	cmyk(0%, 71.8%, 68.9%, 30.6%)
CIE-LAB	lab(41.07, 51.23, 27.44)
CIE-LCH	lch(41.07, 58.12, 28.18°)
OKLab	oklab(51.18% 0.1502 0.0639)
OKLCH	oklch(51.18% 0.163 23.1)
XYZ	xyz(19.9638, 11.9071, 4.8608)
Luminance	0.1190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13237 #32B1AC

analogous

#B13277 #B13237 #B16D32

triadic

#B13237 #37B132 #3237B1

tetradic

#B13237 #77B132 #32B1AC #6D32B1

square

#B13237 #77B132 #32B1AC #6D32B1

split-complementary

#B13237 #32B16D #3277B1

monochromatic

#521719 #812528 #B13237 #CE5257 #DC8285

Accessibility & contrast

On white

6.21

#B13237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B13237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13237

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13237	#FFFFFF	#000000	##FFFFFF
##B13237	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565036

Deuteranopia (green-blind)

#766B33

Tritanopia (blue-blind)

#C30335

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b13237;
/* rgb */ color: rgb(177, 50, 55);
/* oklch */ color: oklch(51.2% 0.163 23.1);

Tailwind

colors: {
  custom: {
    50: '#d0736e',
    500: '#b13237',
    950: '#000000',
  },
}

SCSS

$custom: #b13237;
$custom-light: #d0736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13237",
  "rgb": {
    "r": 177,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.638,
    "s": 55.947,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51178,
    "c": 0.16324,
    "h": 23.1
  },
  "luminance": 0.11904
}

Semantic roles & 50–950 ramp

primary

#B13237

secondary

#7AC5C2

accent

#DFD949

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13237

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

Preview Lab → · Contrast checker → · Palette generator →