#311779#311779

#311779 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.5% C 0.152 H 285.9°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#311779
RGB	rgb(49, 23, 121)
HSL	hsl(256, 68%, 28%)
HSV	hsv(256, 81%, 47%)
CMYK	cmyk(59.5%, 81%, 0%, 52.5%)
CIE-LAB	lab(18.57, 38.65, -50.84)
CIE-LCH	lch(18.57, 63.86, 307.24°)
OKLab	oklab(31.54% 0.0417 -0.1464)
OKLCH	oklch(31.54% 0.152 285.9)
XYZ	xyz(5.0232, 2.6459, 18.3315)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311779 #5F7917

analogous

#172E79 #311779 #621779

triadic

#311779 #793117 #177931

tetradic

#311779 #79172E #5F7917 #177962

square

#311779 #79172E #5F7917 #177962

split-complementary

#311779 #796217 #2E7917

monochromatic

#0A051A #1C0D46 #311779 #4621AC #5E32D8

Accessibility & contrast

On white

13.73

#311779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#311779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311779

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311779	#FFFFFF	#000000	##FFFFFF
##311779	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307C

Deuteranopia (green-blind)

#002A77

Tritanopia (blue-blind)

#0C3448

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311779;
/* rgb */ color: rgb(49, 23, 121);
/* oklch */ color: oklch(31.5% 0.152 285.9);

Tailwind

colors: {
  custom: {
    50: '#7358a1',
    500: '#311779',
    950: '#000000',
  },
}

SCSS

$custom: #311779;
$custom-light: #7358a1;
$custom-dark: #000000;

JSON

{
  "hex": "#311779",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 121
  },
  "hsl": {
    "h": 255.918,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.3154,
    "c": 0.15225,
    "h": 285.9
  },
  "luminance": 0.02646
}

Semantic roles & 50–950 ramp

primary

#311779

secondary

#90AE3E

accent

#EB3DBD

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#09030F

muted

#7B787F

Preview Lab

Preview with #311779

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

Preview Lab → · Contrast checker → · Palette generator →