#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
RGBrgb(179, 27, 165)
HSLhsl(306, 74%, 40%)
HSVhsv(306, 85%, 70%)
CMYKcmyk(0%, 84.9%, 7.8%, 29.8%)
CIE-LABlab(42.89, 69.78, -37.72)
CIE-LCHlch(42.89, 79.32, 331.61°)
OKLaboklab(53.8% 0.2013 -0.1039)
OKLCHoklch(53.8% 0.227 332.7)
XYZxyz(25.7740, 13.0865, 36.7585)
Luminance0.1308 (WCAG relative)
Temperatureneutral
Familypurple

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
##B31BA51.005.813.625.81
#FFFFFF5.811.0021.001.00
#0000003.6221.001.0021.00
##FFFFFF5.811.0021.001.00

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 →

#B31BA5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva