#B4163C#B4163C

#B4163C is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.7% C 0.187 H 16.0°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#B4163C
RGB	rgb(180, 22, 60)
HSL	hsl(346, 78%, 40%)
HSV	hsv(346, 88%, 71%)
CMYK	cmyk(0%, 87.8%, 66.7%, 29.4%)
CIE-LAB	lab(38.91, 60.35, 21.78)
CIE-LCH	lch(38.91, 64.16, 19.84°)
OKLab	oklab(49.71% 0.1801 0.0518)
OKLCH	oklch(49.71% 0.187 16)
XYZ	xyz(19.9272, 10.6065, 5.2721)
Luminance	0.1060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4163C #16B48E

analogous

#B4168B #B4163C #B43F16

triadic

#B4163C #3CB416 #163CB4

tetradic

#B4163C #8BB416 #16B48E #3F16B4

square

#B4163C #8BB416 #16B48E #3F16B4

split-complementary

#B4163C #16B43F #168BB4

monochromatic

#470918 #7D0F2A #B4163C #E42352 #EB5A7D

Accessibility & contrast

On white

6.73

#B4163C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B4163C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4163C

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4163C	#FFFFFF	#000000	##FFFFFF
##B4163C	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473C

Deuteranopia (green-blind)

#716737

Tritanopia (blue-blind)

#C60028

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b4163c;
/* rgb */ color: rgb(180, 22, 60);
/* oklch */ color: oklch(49.7% 0.187 16.0);

Tailwind

colors: {
  custom: {
    50: '#d36971',
    500: '#b4163c',
    950: '#000000',
  },
}

SCSS

$custom: #b4163c;
$custom-light: #d36971;
$custom-dark: #000000;

JSON

{
  "hex": "#b4163c",
  "rgb": {
    "r": 180,
    "g": 22,
    "b": 60
  },
  "hsl": {
    "h": 345.57,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.49711,
    "c": 0.1874,
    "h": 16
  },
  "luminance": 0.10603
}

Semantic roles & 50–950 ramp

primary

#B4163C

secondary

#58CEB2

accent

#F5C633

background

#FEF6F6

surface

#FCECEC

border

#D5C7C7

text

#160707

muted

#847A7A

Preview Lab

Preview with #B4163C

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

Preview Lab → · Contrast checker → · Palette generator →