#31178D#31178D

#31178D is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.7% C 0.176 H 281.5°. Best body text is #FFFFFF at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#31178D
RGB	rgb(49, 23, 141)
HSL	hsl(253, 72%, 32%)
HSV	hsv(253, 84%, 55%)
CMYK	cmyk(65.2%, 83.7%, 0%, 44.7%)
CIE-LAB	lab(20.78, 44.65, -59.82)
CIE-LCH	lch(20.78, 74.64, 306.74°)
OKLab	oklab(33.74% 0.0351 -0.1726)
OKLCH	oklch(33.74% 0.176 281.5)
XYZ	xyz(6.3792, 3.1884, 25.4734)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31178D #738D17

analogous

#17388D #31178D #6C178D

triadic

#31178D #8D3117 #178D31

tetradic

#31178D #8D1738 #738D17 #178D6C

square

#31178D #8D1738 #738D17 #178D6C

split-complementary

#31178D #8D6C17 #388D17

monochromatic

#0C0624 #1F0E58 #31178D #4320C2 #623FE0

Accessibility & contrast

On white

12.82

#31178D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#31178D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31178D

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31178D	#FFFFFF	#000000	##FFFFFF
##31178D	1.00	12.82	1.64	12.82
#FFFFFF	12.82	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002E8B

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #31178d;
/* rgb */ color: rgb(49, 23, 141);
/* oklch */ color: oklch(33.7% 0.176 281.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#31178d",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 253.22,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33735,
    "c": 0.17612,
    "h": 281.5
  },
  "luminance": 0.03189
}

Semantic roles & 50–950 ramp

primary

#31178D

secondary

#A4C040

accent

#EF39C7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #31178D

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

Preview Lab → · Contrast checker → · Palette generator →