#B31B63#B31B63

#B31B63 is a mid, vivid pink. Relative luminance 0.113; OKLCH L 50.8% C 0.191 H 359.0°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#B31B63
RGB	rgb(179, 27, 99)
HSL	hsl(332, 74%, 40%)
HSV	hsv(332, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 44.7%, 29.8%)
CIE-LAB	lab(40.03, 61.88, -1.52)
CIE-LCH	lch(40.03, 61.89, 358.60°)
OKLab	oklab(50.81% 0.1906 -0.0032)
OKLCH	oklch(50.81% 0.191 359)
XYZ	xyz(21.2362, 11.2713, 12.8593)
Luminance	0.1127 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B63 #1BB36B

analogous

#B31BAF #B31B63 #B31F1B

triadic

#B31B63 #63B31B #1B63B3

tetradic

#B31B63 #AFB31B #1BB36B #1F1BB3

square

#B31B63 #AFB31B #1BB36B #1F1BB3

split-complementary

#B31B63 #1BB31F #1BAFB3

monochromatic

#490B28 #7E1346 #B31B63 #DF2C81 #E761A1

Accessibility & contrast

On white

6.45

#B31B63 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#B31B63 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B63

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B63	#FFFFFF	#000000	##FFFFFF
##B31B63	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424C65

Deuteranopia (green-blind)

#6B6860

Tritanopia (blue-blind)

#C3003E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31b63;
/* rgb */ color: rgb(179, 27, 99);
/* oklch */ color: oklch(50.8% 0.191 359.0);

Tailwind

colors: {
  custom: {
    50: '#d06c8f',
    500: '#b31b63',
    950: '#000000',
  },
}

SCSS

$custom: #b31b63;
$custom-light: #d06c8f;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b63",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 331.579,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50814,
    "c": 0.19058,
    "h": 359
  },
  "luminance": 0.11268
}

Semantic roles & 50–950 ramp

primary

#B31B63

secondary

#5ECC98

accent

#F09937

background

#FDF7F8

surface

#FBEDF0

border

#D4C8CB

text

#15080C

muted

#837B7D

Preview Lab

Preview with #B31B63

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

Preview Lab → · Contrast checker → · Palette generator →