#31178F#31178F

#31178F is a dark, vivid violet. Relative luminance 0.032; OKLCH L 34.0% C 0.178 H 281.1°. Best body text is #FFFFFF at 12.73:1 contrast (WCAG AA passes).

Color values

HEX	#31178F
RGB	rgb(49, 23, 143)
HSL	hsl(253, 72%, 33%)
HSV	hsv(253, 84%, 56%)
CMYK	cmyk(65.7%, 83.9%, 0%, 43.9%)
CIE-LAB	lab(21.01, 45.24, -60.68)
CIE-LCH	lch(21.01, 75.69, 306.70°)
OKLab	oklab(33.96% 0.0344 -0.1751)
OKLCH	oklch(33.96% 0.178 281.1)
XYZ	xyz(6.5294, 3.2484, 26.2642)
Luminance	0.0325 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31178F #758F17

analogous

#17398F #31178F #6D178F

triadic

#31178F #8F3117 #178F31

tetradic

#31178F #8F1739 #758F17 #178F6D

square

#31178F #8F1739 #758F17 #178F6D

split-complementary

#31178F #8F6D17 #398F17

monochromatic

#0D0626 #1F0F5A #31178F #431FC4 #6340E0

Accessibility & contrast

On white

12.73

#31178F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#31178F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31178F

12.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31178F	#FFFFFF	#000000	##FFFFFF
##31178F	1.00	12.73	1.65	12.73
#FFFFFF	12.73	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003692

Deuteranopia (green-blind)

#002E8D

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #31178f;
/* rgb */ color: rgb(49, 23, 143);
/* oklch */ color: oklch(34.0% 0.178 281.1);

Tailwind

colors: {
  custom: {
    50: '#7759b1',
    500: '#31178f',
    950: '#000000',
  },
}

SCSS

$custom: #31178f;
$custom-light: #7759b1;
$custom-dark: #000000;

JSON

{
  "hex": "#31178f",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 143
  },
  "hsl": {
    "h": 253,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33961,
    "c": 0.17846,
    "h": 281.1
  },
  "luminance": 0.03249
}

Semantic roles & 50–950 ramp

primary

#31178F

secondary

#A5C141

accent

#EF39C8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #31178F

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

Preview Lab → · Contrast checker → · Palette generator →