#B3312E#B3312E

#B3312E is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.167 H 26.4°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#B3312E
RGB	rgb(179, 49, 46)
HSL	hsl(1, 59%, 44%)
HSV	hsv(1, 74%, 70%)
CMYK	cmyk(0%, 72.6%, 74.3%, 29.8%)
CIE-LAB	lab(41.19, 51.82, 33.04)
CIE-LCH	lch(41.19, 61.46, 32.53°)
OKLab	oklab(51.29% 0.1499 0.0744)
OKLCH	oklch(51.29% 0.167 26.4)
XYZ	xyz(20.1842, 11.9807, 3.8339)
Luminance	0.1198 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3312E #2EB0B3

analogous

#B32E6E #B3312E #B3742E

triadic

#B3312E #2EB331 #312EB3

tetradic

#B3312E #6EB32E #2EB0B3 #742EB3

square

#B3312E #6EB32E #2EB0B3 #742EB3

split-complementary

#B3312E #2EB374 #2E6EB3

monochromatic

#521615 #822421 #B3312E #D1504D #DE807E

Accessibility & contrast

On white

6.18

#B3312E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B3312E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3312E

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3312E	#FFFFFF	#000000	##FFFFFF
##B3312E	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F2C

Deuteranopia (green-blind)

#776B29

Tritanopia (blue-blind)

#C50032

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b3312e;
/* rgb */ color: rgb(179, 49, 46);
/* oklch */ color: oklch(51.3% 0.167 26.4);

Tailwind

colors: {
  custom: {
    50: '#d27267',
    500: '#b3312e',
    950: '#000000',
  },
}

SCSS

$custom: #b3312e;
$custom-light: #d27267;
$custom-dark: #000000;

JSON

{
  "hex": "#b3312e",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 46
  },
  "hsl": {
    "h": 1.353,
    "s": 59.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51294,
    "c": 0.16731,
    "h": 26.4
  },
  "luminance": 0.11978
}

Semantic roles & 50–950 ramp

primary

#B3312E

secondary

#76C5C6

accent

#DFE246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B3312E

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

Preview Lab → · Contrast checker → · Palette generator →