#311781#311781

#311781 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.4% C 0.162 H 284.0°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#311781
RGB	rgb(49, 23, 129)
HSL	hsl(255, 70%, 30%)
HSV	hsv(255, 82%, 51%)
CMYK	cmyk(62%, 82.2%, 0%, 49.4%)
CIE-LAB	lab(19.43, 41.06, -54.50)
CIE-LCH	lch(19.43, 68.24, 306.99°)
OKLab	oklab(32.4% 0.0391 -0.1571)
OKLCH	oklch(32.4% 0.162 284)
XYZ	xyz(5.5342, 2.8504, 21.0232)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311781 #678117

analogous

#173281 #311781 #661781

triadic

#311781 #813117 #178131

tetradic

#311781 #811732 #678117 #178166

square

#311781 #811732 #678117 #178166

split-complementary

#311781 #816617 #328117

monochromatic

#0A051A #1D0E4D #311781 #4520B5 #5F37DB

Accessibility & contrast

On white

13.37

#311781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#311781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311781

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311781	#FFFFFF	#000000	##FFFFFF
##311781	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003284

Deuteranopia (green-blind)

#002C7F

Tritanopia (blue-blind)

#00374C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #311781;
/* rgb */ color: rgb(49, 23, 129);
/* oklch */ color: oklch(32.4% 0.162 284.0);

Tailwind

colors: {
  custom: {
    50: '#7458a7',
    500: '#311781',
    950: '#000000',
  },
}

SCSS

$custom: #311781;
$custom-light: #7458a7;
$custom-dark: #000000;

JSON

{
  "hex": "#311781",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 129
  },
  "hsl": {
    "h": 254.717,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32404,
    "c": 0.16191,
    "h": 284
  },
  "luminance": 0.02851
}

Semantic roles & 50–950 ramp

primary

#311781

secondary

#98B53E

accent

#ED3BC1

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311781

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

Preview Lab → · Contrast checker → · Palette generator →