#311F83#311F83

#311F83 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.6% C 0.156 H 282.2°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#311F83
RGB	rgb(49, 31, 131)
HSL	hsl(251, 62%, 32%)
HSV	hsv(251, 76%, 51%)
CMYK	cmyk(62.6%, 76.3%, 0%, 48.6%)
CIE-LAB	lab(21.10, 37.53, -53.02)
CIE-LCH	lch(21.10, 64.96, 305.29°)
OKLab	oklab(33.63% 0.0331 -0.1529)
OKLCH	oklch(33.63% 0.156 282.2)
XYZ	xyz(5.8521, 3.2712, 21.7914)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F83 #71831F

analogous

#1F3F83 #311F83 #631F83

triadic

#311F83 #83311F #1F8331

tetradic

#311F83 #831F3F #71831F #1F8363

square

#311F83 #831F3F #71831F #1F8363

split-complementary

#311F83 #83631F #3F831F

monochromatic

#0C0820 #1E1352 #311F83 #442BB4 #6249D4

Accessibility & contrast

On white

12.69

#311F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#311F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F83

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F83	#FFFFFF	#000000	##FFFFFF
##311F83	1.00	12.69	1.65	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003686

Deuteranopia (green-blind)

#002F81

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #311f83;
/* rgb */ color: rgb(49, 31, 131);
/* oklch */ color: oklch(33.6% 0.156 282.2);

Tailwind

colors: {
  custom: {
    50: '#745da8',
    500: '#311f83',
    950: '#000000',
  },
}

SCSS

$custom: #311f83;
$custom-light: #745da8;
$custom-dark: #000000;

JSON

{
  "hex": "#311f83",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 131
  },
  "hsl": {
    "h": 250.8,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33632,
    "c": 0.15642,
    "h": 282.2
  },
  "luminance": 0.03272
}

Semantic roles & 50–950 ramp

primary

#311F83

secondary

#A2B648

accent

#E543C8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311F83

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

Preview Lab → · Contrast checker → · Palette generator →