#B8312A#B8312A

#B8312A is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.173 H 27.8°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B8312A
RGB	rgb(184, 49, 42)
HSL	hsl(3, 63%, 44%)
HSV	hsv(3, 77%, 72%)
CMYK	cmyk(0%, 73.4%, 77.2%, 27.8%)
CIE-LAB	lab(42.09, 53.25, 36.60)
CIE-LCH	lch(42.09, 64.62, 34.50°)
OKLab	oklab(52.13% 0.1529 0.0808)
OKLCH	oklch(52.13% 0.173 27.8)
XYZ	xyz(21.2859, 12.5574, 3.4931)
Luminance	0.1255 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B8312A #2AB1B8

analogous

#B82A6A #B8312A #B8782A

triadic

#B8312A #2AB831 #312AB8

tetradic

#B8312A #6AB82A #2AB1B8 #782AB8

square

#B8312A #6AB82A #2AB1B8 #782AB8

split-complementary

#B8312A #2AB878 #2A6AB8

monochromatic

#541613 #86241F #B8312A #D6514A #E1807B

Accessibility & contrast

On white

5.98

#B8312A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B8312A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B8312A

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B8312A	#FFFFFF	#000000	##FFFFFF
##B8312A	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595128

Deuteranopia (green-blind)

#7B6E25

Tritanopia (blue-blind)

#CB0031

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b8312a;
/* rgb */ color: rgb(184, 49, 42);
/* oklch */ color: oklch(52.1% 0.173 27.8);

Tailwind

colors: {
  custom: {
    50: '#d67364',
    500: '#b8312a',
    950: '#000000',
  },
}

SCSS

$custom: #b8312a;
$custom-light: #d67364;
$custom-dark: #000000;

JSON

{
  "hex": "#b8312a",
  "rgb": {
    "r": 184,
    "g": 49,
    "b": 42
  },
  "hsl": {
    "h": 2.958,
    "s": 62.832,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52125,
    "c": 0.17297,
    "h": 27.8
  },
  "luminance": 0.12554
}

Semantic roles & 50–950 ramp

primary

#B8312A

secondary

#75C5C9

accent

#DEE642

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B8312A

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

Preview Lab → · Contrast checker → · Palette generator →