#B3313D#B3313D

#B3313D is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.166 H 20.3°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B3313D
RGB	rgb(179, 49, 61)
HSL	hsl(354, 57%, 45%)
HSV	hsv(354, 73%, 70%)
CMYK	cmyk(0%, 72.6%, 65.9%, 29.8%)
CIE-LAB	lab(41.41, 52.57, 24.28)
CIE-LCH	lch(41.41, 57.91, 24.79°)
OKLab	oklab(51.53% 0.1555 0.0576)
OKLCH	oklch(51.53% 0.166 20.3)
XYZ	xyz(20.5332, 12.1203, 5.6722)
Luminance	0.1212 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3313D #31B3A7

analogous

#B3317E #B3313D #B36631

triadic

#B3313D #3DB331 #313DB3

tetradic

#B3313D #7EB331 #31B3A7 #6631B3

square

#B3313D #7EB331 #31B3A7 #6631B3

split-complementary

#B3313D #31B366 #317EB3

monochromatic

#53171C #83242D #B3313D #D0525D #DD828A

Accessibility & contrast

On white

6.13

#B3313D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B3313D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3313D

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3313D	#FFFFFF	#000000	##FFFFFF
##B3313D	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503C

Deuteranopia (green-blind)

#766C39

Tritanopia (blue-blind)

#C50037

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b3313d;
/* rgb */ color: rgb(179, 49, 61);
/* oklch */ color: oklch(51.5% 0.166 20.3);

Tailwind

colors: {
  custom: {
    50: '#d17372',
    500: '#b3313d',
    950: '#000000',
  },
}

SCSS

$custom: #b3313d;
$custom-light: #d17372;
$custom-dark: #000000;

JSON

{
  "hex": "#b3313d",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 61
  },
  "hsl": {
    "h": 354.462,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5153,
    "c": 0.1658,
    "h": 20.3
  },
  "luminance": 0.12117
}

Semantic roles & 50–950 ramp

primary

#B3313D

secondary

#7AC6BF

accent

#E0D248

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3313D

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

Preview Lab → · Contrast checker → · Palette generator →