#311F84#311F84

#311F84 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.7% C 0.158 H 282.0°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#311F84
RGB	rgb(49, 31, 132)
HSL	hsl(251, 62%, 32%)
HSV	hsv(251, 77%, 52%)
CMYK	cmyk(62.9%, 76.5%, 0%, 48.2%)
CIE-LAB	lab(21.20, 37.85, -53.48)
CIE-LCH	lch(21.20, 65.52, 305.28°)
OKLab	oklab(33.74% 0.0328 -0.1542)
OKLCH	oklch(33.74% 0.158 282)
XYZ	xyz(5.9202, 3.2985, 22.1500)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F84 #72841F

analogous

#1F4084 #311F84 #641F84

triadic

#311F84 #84311F #1F8431

tetradic

#311F84 #841F40 #72841F #1F8464

square

#311F84 #841F40 #72841F #1F8464

split-complementary

#311F84 #84641F #40841F

monochromatic

#0C0821 #1F1352 #311F84 #432BB6 #6249D4

Accessibility & contrast

On white

12.65

#311F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#311F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F84

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F84	#FFFFFF	#000000	##FFFFFF
##311F84	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003687

Deuteranopia (green-blind)

#002F82

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #311f84;
/* rgb */ color: rgb(49, 31, 132);
/* oklch */ color: oklch(33.7% 0.158 282.0);

Tailwind

colors: {
  custom: {
    50: '#745da9',
    500: '#311f84',
    950: '#000000',
  },
}

SCSS

$custom: #311f84;
$custom-light: #745da9;
$custom-dark: #000000;

JSON

{
  "hex": "#311f84",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 132
  },
  "hsl": {
    "h": 250.693,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33736,
    "c": 0.15768,
    "h": 282
  },
  "luminance": 0.03299
}

Semantic roles & 50–950 ramp

primary

#311F84

secondary

#A3B748

accent

#E543C8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311F84

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

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