#311C91#311C91

#311C91 is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.7% C 0.177 H 280.2°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#311C91
RGB	rgb(49, 28, 145)
HSL	hsl(251, 68%, 34%)
HSV	hsv(251, 81%, 57%)
CMYK	cmyk(66.2%, 80.7%, 0%, 43.1%)
CIE-LAB	lab(22.04, 43.50, -60.22)
CIE-LCH	lch(22.04, 74.29, 305.84°)
OKLab	oklab(34.74% 0.0311 -0.1738)
OKLCH	oklch(34.74% 0.177 280.2)
XYZ	xyz(6.7911, 3.5273, 27.1055)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C91 #7C911C

analogous

#1C4291 #311C91 #6C1C91

triadic

#311C91 #91311C #1C9131

tetradic

#311C91 #911C42 #7C911C #1C916C

square

#311C91 #911C42 #7C911C #1C916C

split-complementary

#311C91 #916C1C #42911C

monochromatic

#0E082A #20125E #311C91 #4226C4 #654BDC

Accessibility & contrast

On white

12.31

#311C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#311C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C91

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C91	#FFFFFF	#000000	##FFFFFF
##311C91	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003994

Deuteranopia (green-blind)

#00308F

Tritanopia (blue-blind)

#003F57

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #311c91;
/* rgb */ color: rgb(49, 28, 145);
/* oklch */ color: oklch(34.7% 0.177 280.2);

Tailwind

colors: {
  custom: {
    50: '#775cb2',
    500: '#311c91',
    950: '#000000',
  },
}

SCSS

$custom: #311c91;
$custom-light: #775cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#311c91",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 145
  },
  "hsl": {
    "h": 250.769,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3474,
    "c": 0.17662,
    "h": 280.2
  },
  "luminance": 0.03528
}

Semantic roles & 50–950 ramp

primary

#311C91

secondary

#AABE4A

accent

#EB3DCB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311C91

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

Preview Lab → · Contrast checker → · Palette generator →