#311D91#311D91

#311D91 is a dark, vivid violet. Relative luminance 0.036; OKLCH L 34.9% C 0.176 H 280.0°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX#311D91
RGBrgb(49, 29, 145)
HSLhsl(250, 67%, 34%)
HSVhsv(250, 80%, 57%)
CMYKcmyk(66.2%, 80%, 0%, 43.1%)
CIE-LABlab(22.22, 43.00, -59.94)
CIE-LCHlch(22.22, 73.77, 305.66°)
OKLaboklab(34.86% 0.0306 -0.173)
OKLCHoklch(34.86% 0.176 280)
XYZxyz(6.8152, 3.5755, 27.1136)
Luminance0.0358 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#311D91 #7D911D
analogous
#1D4391 #311D91 #6B1D91
triadic
#311D91 #91311D #1D9131
tetradic
#311D91 #911D43 #7D911D #1D916B
square
#311D91 #911D43 #7D911D #1D916B
split-complementary
#311D91 #916B1D #43911D
monochromatic
#0F092B #20135E #311D91 #4227C4 #664DDB

Accessibility & contrast

On white

12.24
#311D91 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.72
#311D91 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D91
12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##311D91#FFFFFF#000000##FFFFFF
##311D911.0012.241.7212.24
#FFFFFF12.241.0021.001.00
#0000001.7221.001.0021.00
##FFFFFF12.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003994
Deuteranopia (green-blind)
#00318F
Tritanopia (blue-blind)
#004057
Achromatopsia (no color)
#353535

Design tokens & code

CSS
--color: #311d91;
/* rgb */ color: rgb(49, 29, 145);
/* oklch */ color: oklch(34.9% 0.176 280.0);
Tailwind
colors: {
  custom: {
    50: '#775db2',
    500: '#311d91',
    950: '#000000',
  },
}
SCSS
$custom: #311d91;
$custom-light: #775db2;
$custom-dark: #000000;
JSON
{
  "hex": "#311d91",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 145
  },
  "hsl": {
    "h": 250.345,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.34861,
    "c": 0.17571,
    "h": 280
  },
  "luminance": 0.03576
}

Semantic roles & 50–950 ramp

primary
#311D91
secondary
#AABE4C
accent
#EA3ECC
background
#F7F5FB
surface
#EEE9F6
border
#C9C5D0
text
#0A0411
muted
#7C7980

Preview Lab

Preview with #311D91

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

Preview Lab → · Contrast checker → · Palette generator →

#311D91 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva