#B3313E#B3313E

#B3313E is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.166 H 19.9°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B3313E
RGB	rgb(179, 49, 62)
HSL	hsl(354, 57%, 45%)
HSV	hsv(354, 73%, 70%)
CMYK	cmyk(0%, 72.6%, 65.4%, 29.8%)
CIE-LAB	lab(41.42, 52.63, 23.69)
CIE-LCH	lch(41.42, 57.72, 24.23°)
OKLab	oklab(51.55% 0.1559 0.0564)
OKLCH	oklch(51.55% 0.166 19.9)
XYZ	xyz(20.5604, 12.1312, 5.8154)
Luminance	0.1213 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3313E #31B3A6

analogous

#B3317F #B3313E #B36531

triadic

#B3313E #3EB331 #313EB3

tetradic

#B3313E #7FB331 #31B3A6 #6531B3

square

#B3313E #7FB331 #31B3A6 #6531B3

split-complementary

#B3313E #31B365 #317FB3

monochromatic

#53171D #83242D #B3313E #D0525E #DD828B

Accessibility & contrast

On white

6.13

#B3313E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B3313E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3313E

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3313E	#FFFFFF	#000000	##FFFFFF
##B3313E	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503E

Deuteranopia (green-blind)

#766C3A

Tritanopia (blue-blind)

#C40137

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b3313e;
/* rgb */ color: rgb(179, 49, 62);
/* oklch */ color: oklch(51.5% 0.166 19.9);

Tailwind

colors: {
  custom: {
    50: '#d17373',
    500: '#b3313e',
    950: '#000000',
  },
}

SCSS

$custom: #b3313e;
$custom-light: #d17373;
$custom-dark: #000000;

JSON

{
  "hex": "#b3313e",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 62
  },
  "hsl": {
    "h": 354,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51548,
    "c": 0.16574,
    "h": 19.9
  },
  "luminance": 0.12128
}

Semantic roles & 50–950 ramp

primary

#B3313E

secondary

#7AC6BE

accent

#E0D148

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3313E

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

Preview Lab → · Contrast checker → · Palette generator →