#B13143#B13143

#B13143 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.3% C 0.164 H 17.4°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B13143
RGB	rgb(177, 49, 67)
HSL	hsl(352, 57%, 44%)
HSV	hsv(352, 72%, 69%)
CMYK	cmyk(0%, 72.3%, 62.1%, 30.6%)
CIE-LAB	lab(41.14, 52.31, 20.15)
CIE-LCH	lch(41.14, 56.06, 21.07°)
OKLab	oklab(51.3% 0.1561 0.0489)
OKLCH	oklch(51.3% 0.164 17.4)
XYZ	xyz(20.2449, 11.9519, 6.5500)
Luminance	0.1195 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13143 #31B19F

analogous

#B13183 #B13143 #B15F31

triadic

#B13143 #43B131 #3143B1

tetradic

#B13143 #83B131 #31B19F #5F31B1

square

#B13143 #83B131 #31B19F #5F31B1

split-complementary

#B13143 #31B15F #3183B1

monochromatic

#51161F #812431 #B13143 #CF5162 #DC808D

Accessibility & contrast

On white

6.20

#B13143 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B13143 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13143

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13143	#FFFFFF	#000000	##FFFFFF
##B13143	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545043

Deuteranopia (green-blind)

#746B40

Tritanopia (blue-blind)

#C20839

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b13143;
/* rgb */ color: rgb(177, 49, 67);
/* oklch */ color: oklch(51.3% 0.164 17.4);

Tailwind

colors: {
  custom: {
    50: '#cf7377',
    500: '#b13143',
    950: '#000000',
  },
}

SCSS

$custom: #b13143;
$custom-light: #cf7377;
$custom-dark: #000000;

JSON

{
  "hex": "#b13143",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 67
  },
  "hsl": {
    "h": 351.563,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51298,
    "c": 0.16357,
    "h": 17.4
  },
  "luminance": 0.11949
}

Semantic roles & 50–950 ramp

primary

#B13143

secondary

#79C5BA

accent

#E0CB48

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13143

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

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