#B31551#B31551

#B31551 is a mid, vivid pink. Relative luminance 0.107; OKLCH L 50.0% C 0.189 H 6.7°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#B31551
RGB	rgb(179, 21, 81)
HSL	hsl(337, 79%, 39%)
HSV	hsv(337, 88%, 70%)
CMYK	cmyk(0%, 88.3%, 54.7%, 29.8%)
CIE-LAB	lab(39.10, 61.60, 8.59)
CIE-LCH	lch(39.10, 62.20, 7.94°)
OKLab	oklab(49.96% 0.1882 0.0221)
OKLCH	oklch(49.96% 0.189 6.7)
XYZ	xyz(20.3458, 10.7172, 8.7803)
Luminance	0.1071 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31551 #15B377

analogous

#B315A0 #B31551 #B32815

triadic

#B31551 #51B315 #1551B3

tetradic

#B31551 #A0B315 #15B377 #2815B3

square

#B31551 #A0B315 #15B377 #2815B3

split-complementary

#B31551 #15B328 #15A0B3

monochromatic

#45081F #7C0F38 #B31551 #E5206B #EB578F

Accessibility & contrast

On white

6.68

#B31551 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#B31551 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31551

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31551	#FFFFFF	#000000	##FFFFFF
##B31551	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454852

Deuteranopia (green-blind)

#6D674D

Tritanopia (blue-blind)

#C40032

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b31551;
/* rgb */ color: rgb(179, 21, 81);
/* oklch */ color: oklch(50.0% 0.189 6.7);

Tailwind

colors: {
  custom: {
    50: '#d16981',
    500: '#b31551',
    950: '#000000',
  },
}

SCSS

$custom: #b31551;
$custom-light: #d16981;
$custom-dark: #000000;

JSON

{
  "hex": "#b31551",
  "rgb": {
    "r": 179,
    "g": 21,
    "b": 81
  },
  "hsl": {
    "h": 337.215,
    "s": 79,
    "l": 39.216
  },
  "oklch": {
    "l": 0.49964,
    "c": 0.18945,
    "h": 6.7
  },
  "luminance": 0.10714
}

Semantic roles & 50–950 ramp

primary

#B31551

secondary

#56CEA0

accent

#F5AB32

background

#FDF6F7

surface

#FBECEE

border

#D4C7C9

text

#15080A

muted

#837A7C

Preview Lab

Preview with #B31551

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

Preview Lab → · Contrast checker → · Palette generator →