#B3312C#B3312C

#B3312C is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.168 H 27.1°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B3312C
RGB	rgb(179, 49, 44)
HSL	hsl(2, 61%, 44%)
HSV	hsv(2, 75%, 70%)
CMYK	cmyk(0%, 72.6%, 75.4%, 29.8%)
CIE-LAB	lab(41.16, 51.73, 34.18)
CIE-LCH	lch(41.16, 62.00, 33.45°)
OKLab	oklab(51.27% 0.1492 0.0764)
OKLCH	oklch(51.27% 0.168 27.1)
XYZ	xyz(20.1457, 11.9653, 3.6311)
Luminance	0.1196 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3312C #2CAEB3

analogous

#B32C6A #B3312C #B3742C

triadic

#B3312C #2CB331 #312CB3

tetradic

#B3312C #6AB32C #2CAEB3 #742CB3

square

#B3312C #6AB32C #2CAEB3 #742CB3

split-complementary

#B3312C #2CB374 #2C6AB3

monochromatic

#511614 #822420 #B3312C #D24F4A #DF7F7B

Accessibility & contrast

On white

6.19

#B3312C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B3312C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3312C

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3312C	#FFFFFF	#000000	##FFFFFF
##B3312C	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F2A

Deuteranopia (green-blind)

#786B27

Tritanopia (blue-blind)

#C50031

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b3312c;
/* rgb */ color: rgb(179, 49, 44);
/* oklch */ color: oklch(51.3% 0.168 27.1);

Tailwind

colors: {
  custom: {
    50: '#d27266',
    500: '#b3312c',
    950: '#000000',
  },
}

SCSS

$custom: #b3312c;
$custom-light: #d27266;
$custom-dark: #000000;

JSON

{
  "hex": "#b3312c",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 44
  },
  "hsl": {
    "h": 2.222,
    "s": 60.538,
    "l": 43.725
  },
  "oklch": {
    "l": 0.51268,
    "c": 0.16759,
    "h": 27.1
  },
  "luminance": 0.11962
}

Semantic roles & 50–950 ramp

primary

#B3312C

secondary

#74C4C7

accent

#DEE444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B3312C

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

Preview Lab → · Contrast checker → · Palette generator →