#B03237#B03237

#B03237 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.162 H 23.0°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B03237
RGB	rgb(176, 50, 55)
HSL	hsl(358, 56%, 44%)
HSV	hsv(358, 72%, 69%)
CMYK	cmyk(0%, 71.6%, 68.8%, 31%)
CIE-LAB	lab(40.88, 50.91, 27.17)
CIE-LCH	lch(40.88, 57.71, 28.09°)
OKLab	oklab(51% 0.1493 0.0634)
OKLCH	oklch(51% 0.162 23)
XYZ	xyz(19.7368, 11.7901, 4.8501)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03237 #32B0AB

analogous

#B03276 #B03237 #B06C32

triadic

#B03237 #37B032 #3237B0

tetradic

#B03237 #76B032 #32B0AB #6C32B0

square

#B03237 #76B032 #32B0AB #6C32B0

split-complementary

#B03237 #32B06C #3276B0

monochromatic

#511719 #802428 #B03237 #CE5156 #DB8185

Accessibility & contrast

On white

6.25

#B03237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B03237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03237

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03237	#FFFFFF	#000000	##FFFFFF
##B03237	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F36

Deuteranopia (green-blind)

#756A33

Tritanopia (blue-blind)

#C10435

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b03237;
/* rgb */ color: rgb(176, 50, 55);
/* oklch */ color: oklch(51.0% 0.162 23.0);

Tailwind

colors: {
  custom: {
    50: '#cf736e',
    500: '#b03237',
    950: '#000000',
  },
}

SCSS

$custom: #b03237;
$custom-light: #cf736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b03237",
  "rgb": {
    "r": 176,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.619,
    "s": 55.752,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51004,
    "c": 0.1622,
    "h": 23
  },
  "luminance": 0.11787
}

Semantic roles & 50–950 ramp

primary

#B03237

secondary

#79C4C1

accent

#DFD949

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03237

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

Preview Lab → · Contrast checker → · Palette generator →