#B4163D#B4163D

#B4163D is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.7% C 0.187 H 15.6°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#B4163D
RGB	rgb(180, 22, 61)
HSL	hsl(345, 78%, 40%)
HSV	hsv(345, 88%, 71%)
CMYK	cmyk(0%, 87.8%, 66.1%, 29.4%)
CIE-LAB	lab(38.93, 60.41, 21.17)
CIE-LCH	lch(38.93, 64.01, 19.31°)
OKLab	oklab(49.73% 0.1805 0.0505)
OKLCH	oklch(49.73% 0.187 15.6)
XYZ	xyz(19.9539, 10.6172, 5.4127)
Luminance	0.1061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4163D #16B48D

analogous

#B4168C #B4163D #B43E16

triadic

#B4163D #3DB416 #163DB4

tetradic

#B4163D #8CB416 #16B48D #3E16B4

square

#B4163D #8CB416 #16B48D #3E16B4

split-complementary

#B4163D #16B43E #168CB4

monochromatic

#470918 #7D0F2B #B4163D #E42353 #EB5A7D

Accessibility & contrast

On white

6.72

#B4163D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B4163D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4163D

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4163D	#FFFFFF	#000000	##FFFFFF
##B4163D	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473D

Deuteranopia (green-blind)

#716738

Tritanopia (blue-blind)

#C60029

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b4163d;
/* rgb */ color: rgb(180, 22, 61);
/* oklch */ color: oklch(49.7% 0.187 15.6);

Tailwind

colors: {
  custom: {
    50: '#d36972',
    500: '#b4163d',
    950: '#000000',
  },
}

SCSS

$custom: #b4163d;
$custom-light: #d36972;
$custom-dark: #000000;

JSON

{
  "hex": "#b4163d",
  "rgb": {
    "r": 180,
    "g": 22,
    "b": 61
  },
  "hsl": {
    "h": 345.19,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.4973,
    "c": 0.18743,
    "h": 15.6
  },
  "luminance": 0.10614
}

Semantic roles & 50–950 ramp

primary

#B4163D

secondary

#58CEB1

accent

#F5C533

background

#FEF6F6

surface

#FCECEC

border

#D5C7C7

text

#160707

muted

#847A7A

Preview Lab

Preview with #B4163D

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

Preview Lab → · Contrast checker → · Palette generator →