#B31CA3#B31CA3

#B31CA3 is a mid, highly saturated purple. Relative luminance 0.131; OKLCH L 53.7% C 0.224 H 333.4°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B31CA3
RGB	rgb(179, 28, 163)
HSL	hsl(306, 73%, 41%)
HSV	hsv(306, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 8.9%, 29.8%)
CIE-LAB	lab(42.85, 69.29, -36.59)
CIE-LCH	lch(42.85, 78.35, 332.16°)
OKLab	oklab(53.74% 0.2007 -0.1006)
OKLCH	oklch(53.74% 0.224 333.4)
XYZ	xyz(25.6167, 13.0609, 35.8151)
Luminance	0.1306 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31CA3 #1CB32C

analogous

#781CB3 #B31CA3 #B31C57

triadic

#B31CA3 #A3B31C #1CA3B3

tetradic

#B31CA3 #B3781C #1CB32C #1C57B3

square

#B31CA3 #B3781C #1CB32C #1C57B3

split-complementary

#B31CA3 #57B31C #1CB378

monochromatic

#490B43 #7E1473 #B31CA3 #DE2ECC #E763D9

Accessibility & contrast

On white

5.81

#B31CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B31CA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31CA3

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31CA3	#FFFFFF	#000000	##FFFFFF
##B31CA3	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1258A6

Deuteranopia (green-blind)

#566CA0

Tritanopia (blue-blind)

#BB3062

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b31ca3;
/* rgb */ color: rgb(179, 28, 163);
/* oklch */ color: oklch(53.7% 0.224 333.4);

Tailwind

colors: {
  custom: {
    50: '#ce6ebf',
    500: '#b31ca3',
    950: '#000000',
  },
}

SCSS

$custom: #b31ca3;
$custom-light: #ce6ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#b31ca3",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 163
  },
  "hsl": {
    "h": 306.358,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.5374,
    "c": 0.22448,
    "h": 333.4
  },
  "luminance": 0.13059
}

Semantic roles & 50–950 ramp

primary

#B31CA3

secondary

#5FCB6B

accent

#F04C38

background

#FDF7FB

surface

#FAEDF7

border

#D3C8D0

text

#140812

muted

#837B81

Preview Lab

Preview with #B31CA3

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

Preview Lab → · Contrast checker → · Palette generator →