#311D4E#311D4E

#311D4E is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.4% C 0.087 H 299.7°. Best body text is #FFFFFF at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#311D4E
RGB	rgb(49, 29, 78)
HSL	hsl(264, 46%, 21%)
HSV	hsv(264, 63%, 31%)
CMYK	cmyk(37.2%, 62.8%, 0%, 69.4%)
CIE-LAB	lab(15.91, 21.88, -26.77)
CIE-LCH	lch(15.91, 34.57, 309.26°)
OKLab	oklab(28.43% 0.0432 -0.0758)
OKLCH	oklch(28.43% 0.087 299.7)
XYZ	xyz(3.0808, 2.0817, 7.4458)
Luminance	0.0208 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D4E #3A4E1D

analogous

#1D214E #311D4E #491D4E

triadic

#311D4E #4E311D #1D4E31

tetradic

#311D4E #4E1D21 #3A4E1D #1D4E49

square

#311D4E #4E1D21 #3A4E1D #1D4E49

split-complementary

#311D4E #4E491D #214E1D

monochromatic

#0E0816 #150C21 #311D4E #4D2E7B #693EA7

Accessibility & contrast

On white

14.83

#311D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#311D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D4E

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D4E	#FFFFFF	#000000	##FFFFFF
##311D4E	1.00	14.83	1.42	14.83
#FFFFFF	14.83	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072750

Deuteranopia (green-blind)

#0E274D

Tritanopia (blue-blind)

#2B2732

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #311d4e;
/* rgb */ color: rgb(49, 29, 78);
/* oklch */ color: oklch(28.4% 0.087 299.7);

Tailwind

colors: {
  custom: {
    50: '#6b5a80',
    500: '#311d4e',
    950: '#000000',
  },
}

SCSS

$custom: #311d4e;
$custom-light: #6b5a80;
$custom-dark: #000000;

JSON

{
  "hex": "#311d4e",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 78
  },
  "hsl": {
    "h": 264.49,
    "s": 45.794,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28433,
    "c": 0.08725,
    "h": 299.7
  },
  "luminance": 0.02082
}

Semantic roles & 50–950 ramp

primary

#311D4E

secondary

#698344

accent

#D552A0

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#07030A

muted

#7A787C

Preview Lab

Preview with #311D4E

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

Preview Lab → · Contrast checker → · Palette generator →