#B8313C#B8313C

#B8313C is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.4% C 0.171 H 21.2°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B8313C
RGB	rgb(184, 49, 60)
HSL	hsl(355, 58%, 46%)
HSV	hsv(355, 73%, 72%)
CMYK	cmyk(0%, 73.4%, 67.4%, 27.8%)
CIE-LAB	lab(42.33, 54.08, 26.25)
CIE-LCH	lch(42.33, 60.12, 25.90°)
OKLab	oklab(52.39% 0.1594 0.0617)
OKLCH	oklch(52.39% 0.171 21.2)
XYZ	xyz(21.6834, 12.7165, 5.5869)
Luminance	0.1271 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B8313C #31B8AD

analogous

#B8317F #B8313C #B86931

triadic

#B8313C #3CB831 #313CB8

tetradic

#B8313C #7FB831 #31B8AD #6931B8

square

#B8313C #7FB831 #31B8AD #6931B8

split-complementary

#B8313C #31B869 #317FB8

monochromatic

#57171C #88242C #B8313C #D2555F #DE858C

Accessibility & contrast

On white

5.93

#B8313C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B8313C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B8313C

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B8313C	#FFFFFF	#000000	##FFFFFF
##B8313C	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57523B

Deuteranopia (green-blind)

#796E38

Tritanopia (blue-blind)

#CA0036

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b8313c;
/* rgb */ color: rgb(184, 49, 60);
/* oklch */ color: oklch(52.4% 0.171 21.2);

Tailwind

colors: {
  custom: {
    50: '#d57371',
    500: '#b8313c',
    950: '#000000',
  },
}

SCSS

$custom: #b8313c;
$custom-light: #d57371;
$custom-dark: #000000;

JSON

{
  "hex": "#b8313c",
  "rgb": {
    "r": 184,
    "g": 49,
    "b": 60
  },
  "hsl": {
    "h": 355.111,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52385,
    "c": 0.17094,
    "h": 21.2
  },
  "luminance": 0.12713
}

Semantic roles & 50–950 ramp

primary

#B8313C

secondary

#7DC8C2

accent

#E1D547

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B8313C

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

Preview Lab → · Contrast checker → · Palette generator →