#B6313A#B6313A

#B6313A is a mid, vivid red. Relative luminance 0.124; OKLCH L 52.0% C 0.169 H 21.8°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B6313A
RGB	rgb(182, 49, 58)
HSL	hsl(356, 58%, 45%)
HSV	hsv(356, 73%, 71%)
CMYK	cmyk(0%, 73.1%, 68.1%, 28.6%)
CIE-LAB	lab(41.92, 53.35, 26.88)
CIE-LCH	lch(41.92, 59.74, 26.74°)
OKLab	oklab(52% 0.1569 0.0629)
OKLCH	oklch(52% 0.169 21.8)
XYZ	xyz(21.1557, 12.4504, 5.2914)
Luminance	0.1245 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B6313A #31B6AD

analogous

#B6317C #B6313A #B66B31

triadic

#B6313A #3AB631 #313AB6

tetradic

#B6313A #7CB631 #31B6AD #6B31B6

square

#B6313A #7CB631 #31B6AD #6B31B6

split-complementary

#B6313A #31B66B #317CB6

monochromatic

#56171B #86242B #B6313A #D1535C #DE848A

Accessibility & contrast

On white

6.02

#B6313A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B6313A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B6313A

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B6313A	#FFFFFF	#000000	##FFFFFF
##B6313A	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575139

Deuteranopia (green-blind)

#786D36

Tritanopia (blue-blind)

#C80036

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b6313a;
/* rgb */ color: rgb(182, 49, 58);
/* oklch */ color: oklch(52.0% 0.169 21.8);

Tailwind

colors: {
  custom: {
    50: '#d47370',
    500: '#b6313a',
    950: '#000000',
  },
}

SCSS

$custom: #b6313a;
$custom-light: #d47370;
$custom-dark: #000000;

JSON

{
  "hex": "#b6313a",
  "rgb": {
    "r": 182,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 355.94,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52002,
    "c": 0.16906,
    "h": 21.8
  },
  "luminance": 0.12447
}

Semantic roles & 50–950 ramp

primary

#B6313A

secondary

#7CC7C2

accent

#E1D647

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B6313A

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

Preview Lab → · Contrast checker → · Palette generator →