#311788#311788

#311788 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 33.2% C 0.170 H 282.5°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#311788
RGB	rgb(49, 23, 136)
HSL	hsl(254, 71%, 31%)
HSV	hsv(254, 83%, 53%)
CMYK	cmyk(64%, 83.1%, 0%, 46.7%)
CIE-LAB	lab(20.21, 43.16, -57.63)
CIE-LCH	lch(20.21, 72.00, 306.83°)
OKLab	oklab(33.17% 0.0368 -0.1662)
OKLCH	oklch(33.17% 0.17 282.5)
XYZ	xyz(6.0156, 3.0429, 23.5581)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311788 #6E8817

analogous

#173588 #311788 #691788

triadic

#311788 #883117 #178831

tetradic

#311788 #881735 #6E8817 #178869

square

#311788 #881735 #6E8817 #178869

split-complementary

#311788 #886917 #358817

monochromatic

#0B051F #1E0E54 #311788 #4420BC #613BDE

Accessibility & contrast

On white

13.05

#311788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#311788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311788

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311788	#FFFFFF	#000000	##FFFFFF
##311788	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348B

Deuteranopia (green-blind)

#002D86

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311788;
/* rgb */ color: rgb(49, 23, 136);
/* oklch */ color: oklch(33.2% 0.170 282.5);

Tailwind

colors: {
  custom: {
    50: '#7659ac',
    500: '#311788',
    950: '#000000',
  },
}

SCSS

$custom: #311788;
$custom-light: #7659ac;
$custom-dark: #000000;

JSON

{
  "hex": "#311788",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 136
  },
  "hsl": {
    "h": 253.805,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33175,
    "c": 0.17024,
    "h": 282.5
  },
  "luminance": 0.03043
}

Semantic roles & 50–950 ramp

primary

#311788

secondary

#9FBC3F

accent

#EE3AC4

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #311788

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

Preview Lab → · Contrast checker → · Palette generator →