#311381#311381

#311381 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 32.0% C 0.165 H 284.5°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#311381
RGB	rgb(49, 19, 129)
HSL	hsl(256, 74%, 29%)
HSV	hsv(256, 85%, 51%)
CMYK	cmyk(62%, 85.3%, 0%, 49.4%)
CIE-LAB	lab(18.81, 42.87, -55.53)
CIE-LCH	lch(18.81, 70.15, 307.67°)
OKLab	oklab(31.98% 0.0415 -0.16)
OKLCH	oklch(31.98% 0.165 284.5)
XYZ	xyz(5.4607, 2.7033, 20.9987)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311381 #638113

analogous

#132C81 #311381 #681381

triadic

#311381 #813113 #138131

tetradic

#311381 #81132C #638113 #138168

square

#311381 #81132C #638113 #138168

split-complementary

#311381 #816813 #2C8113

monochromatic

#0A041B #1D0B4C #311381 #451BB6 #5F2EE0

Accessibility & contrast

On white

13.63

#311381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#311381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311381

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311381	#FFFFFF	#000000	##FFFFFF
##311381	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003184

Deuteranopia (green-blind)

#002A7F

Tritanopia (blue-blind)

#00354C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311381;
/* rgb */ color: rgb(49, 19, 129);
/* oklch */ color: oklch(32.0% 0.165 284.5);

Tailwind

colors: {
  custom: {
    50: '#7556a7',
    500: '#311381',
    950: '#000000',
  },
}

SCSS

$custom: #311381;
$custom-light: #7556a7;
$custom-dark: #000000;

JSON

{
  "hex": "#311381",
  "rgb": {
    "r": 49,
    "g": 19,
    "b": 129
  },
  "hsl": {
    "h": 256.364,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31975,
    "c": 0.16533,
    "h": 284.5
  },
  "luminance": 0.02704
}

Semantic roles & 50–950 ramp

primary

#311381

secondary

#94B63A

accent

#F137BE

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #311381

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

Preview Lab → · Contrast checker → · Palette generator →