#B83131#B83131

#B83131 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.2% C 0.172 H 25.5°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B83131
RGB	rgb(184, 49, 49)
HSL	hsl(0, 58%, 46%)
HSV	hsv(0, 73%, 72%)
CMYK	cmyk(0%, 73.4%, 73.4%, 27.8%)
CIE-LAB	lab(42.17, 53.54, 32.66)
CIE-LCH	lch(42.17, 62.72, 31.38°)
OKLab	oklab(52.22% 0.1553 0.0739)
OKLCH	oklch(52.22% 0.172 25.5)
XYZ	xyz(21.4223, 12.6120, 4.2115)
Luminance	0.1261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83131 #31B8B8

analogous

#B83174 #B83131 #B87431

triadic

#B83131 #31B831 #3131B8

tetradic

#B83131 #74B831 #31B8B8 #7431B8

square

#B83131 #74B831 #31B8B8 #7431B8

split-complementary

#B83131 #31B874 #3174B8

monochromatic

#571717 #882424 #B83131 #D25555 #DE8585

Accessibility & contrast

On white

5.96

#B83131 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B83131 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83131

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83131	#FFFFFF	#000000	##FFFFFF
##B83131	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512F

Deuteranopia (green-blind)

#7A6E2C

Tritanopia (blue-blind)

#CB0033

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b83131;
/* rgb */ color: rgb(184, 49, 49);
/* oklch */ color: oklch(52.2% 0.172 25.5);

Tailwind

colors: {
  custom: {
    50: '#d67369',
    500: '#b83131',
    950: '#000000',
  },
}

SCSS

$custom: #b83131;
$custom-light: #d67369;
$custom-dark: #000000;

JSON

{
  "hex": "#b83131",
  "rgb": {
    "r": 184,
    "g": 49,
    "b": 49
  },
  "hsl": {
    "h": 0,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52215,
    "c": 0.17203,
    "h": 25.5
  },
  "luminance": 0.12609
}

Semantic roles & 50–950 ramp

primary

#B83131

secondary

#7DC8C8

accent

#E1E147

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B83131

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

Preview Lab → · Contrast checker → · Palette generator →