#311573#311573

#311573 is a dark, vivid violet. Relative luminance 0.024; OKLCH L 30.7% C 0.147 H 287.9°. Best body text is #FFFFFF at 14.14:1 contrast (WCAG AA passes).

Color values

HEX	#311573
RGB	rgb(49, 21, 115)
HSL	hsl(258, 69%, 27%)
HSV	hsv(258, 82%, 45%)
CMYK	cmyk(57.4%, 81.7%, 0%, 54.9%)
CIE-LAB	lab(17.58, 37.82, -48.60)
CIE-LCH	lch(17.58, 61.58, 307.90°)
OKLab	oklab(30.66% 0.0451 -0.1398)
OKLCH	oklch(30.66% 0.147 287.9)
XYZ	xyz(4.6284, 2.4269, 16.4409)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311573 #577315

analogous

#152873 #311573 #601573

triadic

#311573 #733115 #157331

tetradic

#311573 #731528 #577315 #157360

square

#311573 #731528 #577315 #157360

split-complementary

#311573 #736015 #287315

monochromatic

#0B051A #1B0C3F #311573 #471EA7 #5E2AD8

Accessibility & contrast

On white

14.14

#311573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#311573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311573

14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311573	#FFFFFF	#000000	##FFFFFF
##311573	1.00	14.14	1.49	14.14
#FFFFFF	14.14	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D76

Deuteranopia (green-blind)

#002971

Tritanopia (blue-blind)

#153044

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #311573;
/* rgb */ color: rgb(49, 21, 115);
/* oklch */ color: oklch(30.7% 0.147 287.9);

Tailwind

colors: {
  custom: {
    50: '#72569c',
    500: '#311573',
    950: '#000000',
  },
}

SCSS

$custom: #311573;
$custom-light: #72569c;
$custom-dark: #000000;

JSON

{
  "hex": "#311573",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 115
  },
  "hsl": {
    "h": 257.872,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.30664,
    "c": 0.14695,
    "h": 287.9
  },
  "luminance": 0.02427
}

Semantic roles & 50–950 ramp

primary

#311573

secondary

#88A93B

accent

#EC3CB7

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09030E

muted

#7B787E

Preview Lab

Preview with #311573

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

Preview Lab → · Contrast checker → · Palette generator →