#31178E#31178E

#31178E is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.8% C 0.177 H 281.3°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#31178E
RGB	rgb(49, 23, 142)
HSL	hsl(253, 72%, 32%)
HSV	hsv(253, 84%, 56%)
CMYK	cmyk(65.5%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(20.90, 44.94, -60.25)
CIE-LCH	lch(20.90, 75.17, 306.72°)
OKLab	oklab(33.85% 0.0347 -0.1739)
OKLCH	oklch(33.85% 0.177 281.3)
XYZ	xyz(6.4540, 3.2183, 25.8670)
Luminance	0.0322 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31178E #748E17

analogous

#17398E #31178E #6C178E

triadic

#31178E #8E3117 #178E31

tetradic

#31178E #8E1739 #748E17 #178E6C

square

#31178E #8E1739 #748E17 #178E6C

split-complementary

#31178E #8E6C17 #398E17

monochromatic

#0D0625 #1F0E59 #31178E #4320C3 #633FE0

Accessibility & contrast

On white

12.78

#31178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#31178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31178E

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31178E	#FFFFFF	#000000	##FFFFFF
##31178E	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#003C54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #31178e;
/* rgb */ color: rgb(49, 23, 142);
/* oklch */ color: oklch(33.8% 0.177 281.3);

Tailwind

colors: {
  custom: {
    50: '#7759b0',
    500: '#31178e',
    950: '#000000',
  },
}

SCSS

$custom: #31178e;
$custom-light: #7759b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31178e",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 253.109,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33848,
    "c": 0.17729,
    "h": 281.3
  },
  "luminance": 0.03219
}

Semantic roles & 50–950 ramp

primary

#31178E

secondary

#A4C040

accent

#EF39C7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #31178E

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

Preview Lab → · Contrast checker → · Palette generator →