#311578#311578

#311578 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 31.2% C 0.153 H 286.5°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#311578
RGB	rgb(49, 21, 120)
HSL	hsl(257, 70%, 28%)
HSV	hsv(257, 83%, 47%)
CMYK	cmyk(59.2%, 82.5%, 0%, 52.9%)
CIE-LAB	lab(18.12, 39.32, -50.93)
CIE-LCH	lch(18.12, 64.34, 307.67°)
OKLab	oklab(31.2% 0.0435 -0.1467)
OKLCH	oklch(31.2% 0.153 286.5)
XYZ	xyz(4.9239, 2.5451, 17.9974)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311578 #5C7815

analogous

#152A78 #311578 #631578

triadic

#311578 #783115 #157831

tetradic

#311578 #78152A #5C7815 #157863

square

#311578 #78152A #5C7815 #157863

split-complementary

#311578 #786315 #2A7815

monochromatic

#0B051A #1C0C44 #311578 #461EAC #5E2DDA

Accessibility & contrast

On white

13.92

#311578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#311578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311578

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311578	#FFFFFF	#000000	##FFFFFF
##311578	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7B

Deuteranopia (green-blind)

#002976

Tritanopia (blue-blind)

#0E3247

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #311578;
/* rgb */ color: rgb(49, 21, 120);
/* oklch */ color: oklch(31.2% 0.153 286.5);

Tailwind

colors: {
  custom: {
    50: '#7357a0',
    500: '#311578',
    950: '#000000',
  },
}

SCSS

$custom: #311578;
$custom-light: #7357a0;
$custom-dark: #000000;

JSON

{
  "hex": "#311578",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 120
  },
  "hsl": {
    "h": 256.97,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31199,
    "c": 0.15297,
    "h": 286.5
  },
  "luminance": 0.02545
}

Semantic roles & 50–950 ramp

primary

#311578

secondary

#8DAE3B

accent

#ED3BBB

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#09030F

muted

#7B787F

Preview Lab

Preview with #311578

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

Preview Lab → · Contrast checker → · Palette generator →