#B1313E#B1313E

#B1313E is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.164 H 19.7°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B1313E
RGB	rgb(177, 49, 62)
HSL	hsl(354, 57%, 44%)
HSV	hsv(354, 72%, 69%)
CMYK	cmyk(0%, 72.3%, 65%, 30.6%)
CIE-LAB	lab(41.05, 52.00, 23.13)
CIE-LCH	lch(41.05, 56.91, 23.98°)
OKLab	oklab(51.2% 0.1541 0.0552)
OKLCH	oklch(51.2% 0.164 19.7)
XYZ	xyz(20.1014, 11.8945, 5.7939)
Luminance	0.1189 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1313E #31B1A4

analogous

#B1317E #B1313E #B16431

triadic

#B1313E #3EB131 #313EB1

tetradic

#B1313E #7EB131 #31B1A4 #6431B1

square

#B1313E #7EB131 #31B1A4 #6431B1

split-complementary

#B1313E #31B164 #317EB1

monochromatic

#51161C #81242D #B1313E #CF515D #DC808A

Accessibility & contrast

On white

6.22

#B1313E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B1313E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1313E

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1313E	#FFFFFF	#000000	##FFFFFF
##B1313E	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54503E

Deuteranopia (green-blind)

#756B3A

Tritanopia (blue-blind)

#C20437

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b1313e;
/* rgb */ color: rgb(177, 49, 62);
/* oklch */ color: oklch(51.2% 0.164 19.7);

Tailwind

colors: {
  custom: {
    50: '#d07373',
    500: '#b1313e',
    950: '#000000',
  },
}

SCSS

$custom: #b1313e;
$custom-light: #d07373;
$custom-dark: #000000;

JSON

{
  "hex": "#b1313e",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 62
  },
  "hsl": {
    "h": 353.906,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.512,
    "c": 0.16369,
    "h": 19.7
  },
  "luminance": 0.11892
}

Semantic roles & 50–950 ramp

primary

#B1313E

secondary

#79C5BD

accent

#E0D048

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B1313E

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

Preview Lab → · Contrast checker → · Palette generator →