#B31BA5#B31BA5

#B31BA5 is a mid, highly saturated purple. Relative luminance 0.131; OKLCH L 53.8% C 0.227 H 332.7°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B31BA5
RGB	rgb(179, 27, 165)
HSL	hsl(306, 74%, 40%)
HSV	hsv(306, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 7.8%, 29.8%)
CIE-LAB	lab(42.89, 69.78, -37.72)
CIE-LCH	lch(42.89, 79.32, 331.61°)
OKLab	oklab(53.8% 0.2013 -0.1039)
OKLCH	oklch(53.8% 0.227 332.7)
XYZ	xyz(25.7740, 13.0865, 36.7585)
Luminance	0.1308 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31BA5 #1BB329

analogous

#751BB3 #B31BA5 #B31B59

triadic

#B31BA5 #A5B31B #1BA5B3

tetradic

#B31BA5 #B3751B #1BB329 #1B59B3

square

#B31BA5 #B3751B #1BB329 #1B59B3

split-complementary

#B31BA5 #59B31B #1BB375

monochromatic

#490B43 #7E1374 #B31BA5 #DF2CCF #E761DB

Accessibility & contrast

On white

5.81

#B31BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B31BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31BA5

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31BA5	#FFFFFF	#000000	##FFFFFF
##B31BA5	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A58A8

Deuteranopia (green-blind)

#546DA2

Tritanopia (blue-blind)

#BB3163

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b31ba5;
/* rgb */ color: rgb(179, 27, 165);
/* oklch */ color: oklch(53.8% 0.227 332.7);

Tailwind

colors: {
  custom: {
    50: '#ce6ec0',
    500: '#b31ba5',
    950: '#000000',
  },
}

SCSS

$custom: #b31ba5;
$custom-light: #ce6ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#b31ba5",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 165
  },
  "hsl": {
    "h": 305.526,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.53803,
    "c": 0.22651,
    "h": 332.7
  },
  "luminance": 0.13084
}

Semantic roles & 50–950 ramp

primary

#B31BA5

secondary

#5ECC68

accent

#F04837

background

#FDF7FB

surface

#FAEDF7

border

#D3C8D0

text

#140812

muted

#837B81

Preview Lab

Preview with #B31BA5

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

Preview Lab → · Contrast checker → · Palette generator →