#B03437#B03437

#B03437 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.2% C 0.160 H 23.6°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B03437
RGB	rgb(176, 52, 55)
HSL	hsl(359, 54%, 45%)
HSV	hsv(359, 70%, 69%)
CMYK	cmyk(0%, 70.5%, 68.8%, 31%)
CIE-LAB	lab(41.16, 50.14, 27.51)
CIE-LCH	lch(41.16, 57.19, 28.75°)
OKLab	oklab(51.21% 0.1469 0.0641)
OKLCH	oklch(51.21% 0.16 23.6)
XYZ	xyz(19.8242, 11.9648, 4.8793)
Luminance	0.1196 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03437 #34B0AD

analogous

#B03475 #B03437 #B06F34

triadic

#B03437 #37B034 #3437B0

tetradic

#B03437 #75B034 #34B0AD #6F34B0

square

#B03437 #75B034 #34B0AD #6F34B0

split-complementary

#B03437 #34B06F #3475B0

monochromatic

#521819 #812628 #B03437 #CD5557 #DB8486

Accessibility & contrast

On white

6.19

#B03437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B03437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03437

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03437	#FFFFFF	#000000	##FFFFFF
##B03437	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)

#575036

Deuteranopia (green-blind)

#766B33

Tritanopia (blue-blind)

#C10C36

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03437;
/* rgb */ color: rgb(176, 52, 55);
/* oklch */ color: oklch(51.2% 0.160 23.6);

Tailwind

colors: {
  custom: {
    50: '#cf746e',
    500: '#b03437',
    950: '#000000',
  },
}

SCSS

$custom: #b03437;
$custom-light: #cf746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b03437",
  "rgb": {
    "r": 176,
    "g": 52,
    "b": 55
  },
  "hsl": {
    "h": 358.548,
    "s": 54.386,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51212,
    "c": 0.16026,
    "h": 23.6
  },
  "luminance": 0.11962
}

Semantic roles & 50–950 ramp

primary

#B03437

secondary

#7CC4C2

accent

#DEDA4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03437

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

Preview Lab → · Contrast checker → · Palette generator →