#B1313D#B1313D

#B1313D is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.164 H 20.2°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B1313D
RGB	rgb(177, 49, 61)
HSL	hsl(354, 57%, 44%)
HSV	hsv(354, 72%, 69%)
CMYK	cmyk(0%, 72.3%, 65.5%, 30.6%)
CIE-LAB	lab(41.03, 51.94, 23.73)
CIE-LCH	lch(41.03, 57.10, 24.55°)
OKLab	oklab(51.18% 0.1537 0.0564)
OKLCH	oklch(51.18% 0.164 20.2)
XYZ	xyz(20.0742, 11.8836, 5.6507)
Luminance	0.1188 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1313D #31B1A5

analogous

#B1317D #B1313D #B16531

triadic

#B1313D #3DB131 #313DB1

tetradic

#B1313D #7DB131 #31B1A5 #6531B1

square

#B1313D #7DB131 #31B1A5 #6531B1

split-complementary

#B1313D #31B165 #317DB1

monochromatic

#51161C #81242C #B1313D #CF515C #DC8089

Accessibility & contrast

On white

6.22

#B1313D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B1313D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1313D

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1313D	#FFFFFF	#000000	##FFFFFF
##B1313D	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)

#544F3C

Deuteranopia (green-blind)

#756B39

Tritanopia (blue-blind)

#C20336

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b1313d;
/* rgb */ color: rgb(177, 49, 61);
/* oklch */ color: oklch(51.2% 0.164 20.2);

Tailwind

colors: {
  custom: {
    50: '#d07372',
    500: '#b1313d',
    950: '#000000',
  },
}

SCSS

$custom: #b1313d;
$custom-light: #d07372;
$custom-dark: #000000;

JSON

{
  "hex": "#b1313d",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 61
  },
  "hsl": {
    "h": 354.375,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51181,
    "c": 0.16374,
    "h": 20.2
  },
  "luminance": 0.11881
}

Semantic roles & 50–950 ramp

primary

#B1313D

secondary

#79C5BE

accent

#E0D248

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B1313D

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

Preview Lab → · Contrast checker → · Palette generator →