#B83A31#B83A31

#B83A31 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.164 H 28.1°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B83A31
RGB	rgb(184, 58, 49)
HSL	hsl(4, 58%, 46%)
HSV	hsv(4, 73%, 72%)
CMYK	cmyk(0%, 68.5%, 73.4%, 27.8%)
CIE-LAB	lab(43.42, 50.11, 34.08)
CIE-LCH	lch(43.42, 60.60, 34.22°)
OKLab	oklab(53.15% 0.1445 0.077)
OKLCH	oklch(53.15% 0.164 28.1)
XYZ	xyz(21.8370, 13.4414, 4.3497)
Luminance	0.1344 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83A31 #31AFB8

analogous

#B8316B #B83A31 #B87D31

triadic

#B83A31 #31B83A #3A31B8

tetradic

#B83A31 #6BB831 #31AFB8 #7D31B8

square

#B83A31 #6BB831 #31AFB8 #7D31B8

split-complementary

#B83A31 #31B87D #316BB8

monochromatic

#571C17 #882B24 #B83A31 #D25D55 #DE8B85

Accessibility & contrast

On white

5.69

#B83A31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B83A31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83A31

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83A31	#FFFFFF	#000000	##FFFFFF
##B83A31	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552F

Deuteranopia (green-blind)

#7D712D

Tritanopia (blue-blind)

#CA1339

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b83a31;
/* rgb */ color: rgb(184, 58, 49);
/* oklch */ color: oklch(53.1% 0.164 28.1);

Tailwind

colors: {
  custom: {
    50: '#d5786a',
    500: '#b83a31',
    950: '#000000',
  },
}

SCSS

$custom: #b83a31;
$custom-light: #d5786a;
$custom-dark: #000000;

JSON

{
  "hex": "#b83a31",
  "rgb": {
    "r": 184,
    "g": 58,
    "b": 49
  },
  "hsl": {
    "h": 4,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53148,
    "c": 0.16377,
    "h": 28.1
  },
  "luminance": 0.13438
}

Semantic roles & 50–950 ramp

primary

#B83A31

secondary

#7DC3C8

accent

#D7E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B83A31

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

Preview Lab → · Contrast checker → · Palette generator →