#B3313C#B3313C

#B3313C is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.166 H 20.8°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#B3313C
RGB	rgb(179, 49, 60)
HSL	hsl(355, 57%, 45%)
HSV	hsv(355, 73%, 70%)
CMYK	cmyk(0%, 72.6%, 66.5%, 29.8%)
CIE-LAB	lab(41.39, 52.52, 24.87)
CIE-LCH	lch(41.39, 58.11, 25.35°)
OKLab	oklab(51.51% 0.1551 0.0588)
OKLCH	oklch(51.51% 0.166 20.8)
XYZ	xyz(20.5065, 12.1096, 5.5317)
Luminance	0.1211 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3313C #31B3A8

analogous

#B3317D #B3313C #B36731

triadic

#B3313C #3CB331 #313CB3

tetradic

#B3313C #7DB331 #31B3A8 #6731B3

square

#B3313C #7DB331 #31B3A8 #6731B3

split-complementary

#B3313C #31B367 #317DB3

monochromatic

#53171C #83242C #B3313C #D0525C #DD8289

Accessibility & contrast

On white

6.14

#B3313C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B3313C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3313C

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3313C	#FFFFFF	#000000	##FFFFFF
##B3313C	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503B

Deuteranopia (green-blind)

#766C38

Tritanopia (blue-blind)

#C50036

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b3313c;
/* rgb */ color: rgb(179, 49, 60);
/* oklch */ color: oklch(51.5% 0.166 20.8);

Tailwind

colors: {
  custom: {
    50: '#d17371',
    500: '#b3313c',
    950: '#000000',
  },
}

SCSS

$custom: #b3313c;
$custom-light: #d17371;
$custom-dark: #000000;

JSON

{
  "hex": "#b3313c",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 60
  },
  "hsl": {
    "h": 354.923,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51512,
    "c": 0.16586,
    "h": 20.8
  },
  "luminance": 0.12107
}

Semantic roles & 50–950 ramp

primary

#B3313C

secondary

#7AC6BF

accent

#E0D348

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B3313C

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

Preview Lab → · Contrast checker → · Palette generator →