#B03136#B03136

#B03136 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.163 H 23.1°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#B03136
RGB	rgb(176, 49, 54)
HSL	hsl(358, 56%, 44%)
HSV	hsv(358, 72%, 69%)
CMYK	cmyk(0%, 72.2%, 69.3%, 31%)
CIE-LAB	lab(40.73, 51.23, 27.60)
CIE-LCH	lch(40.73, 58.19, 28.31°)
OKLab	oklab(50.89% 0.1501 0.0642)
OKLCH	oklch(50.89% 0.163 23.1)
XYZ	xyz(19.6708, 11.6960, 4.7111)
Luminance	0.1169 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03136 #31B0AB

analogous

#B03176 #B03136 #B06C31

triadic

#B03136 #36B031 #3136B0

tetradic

#B03136 #76B031 #31B0AB #6C31B0

square

#B03136 #76B031 #31B0AB #6C31B0

split-complementary

#B03136 #31B06C #3176B0

monochromatic

#501619 #802427 #B03136 #CE5055 #DC8083

Accessibility & contrast

On white

6.29

#B03136 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B03136 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03136

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03136	#FFFFFF	#000000	##FFFFFF
##B03136	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F35

Deuteranopia (green-blind)

#756A32

Tritanopia (blue-blind)

#C10034

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b03136;
/* rgb */ color: rgb(176, 49, 54);
/* oklch */ color: oklch(50.9% 0.163 23.1);

Tailwind

colors: {
  custom: {
    50: '#cf726d',
    500: '#b03136',
    950: '#000000',
  },
}

SCSS

$custom: #b03136;
$custom-light: #cf726d;
$custom-dark: #000000;

JSON

{
  "hex": "#b03136",
  "rgb": {
    "r": 176,
    "g": 49,
    "b": 54
  },
  "hsl": {
    "h": 357.638,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50886,
    "c": 0.16325,
    "h": 23.1
  },
  "luminance": 0.11693
}

Semantic roles & 50–950 ramp

primary

#B03136

secondary

#78C5C2

accent

#E0DA48

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B03136

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

Preview Lab → · Contrast checker → · Palette generator →