#331A73#331A73

#331A73 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.5% C 0.141 H 288.3°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#331A73
RGB	rgb(51, 26, 115)
HSL	hsl(257, 63%, 28%)
HSV	hsv(257, 77%, 45%)
CMYK	cmyk(55.7%, 77.4%, 0%, 54.9%)
CIE-LAB	lab(18.71, 35.54, -46.73)
CIE-LCH	lch(18.71, 58.71, 307.26°)
OKLab	oklab(31.51% 0.0444 -0.1344)
OKLCH	oklch(31.51% 0.142 288.3)
XYZ	xyz(4.8282, 2.6802, 16.4792)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331A73 #5A731A

analogous

#1A2D73 #331A73 #601A73

triadic

#331A73 #73331A #1A7333

tetradic

#331A73 #731A2D #5A731A #1A7360

square

#331A73 #731A2D #5A731A #1A7360

split-complementary

#331A73 #73601A #2D731A

monochromatic

#0B0619 #1D0F41 #331A73 #4925A5 #6236D2

Accessibility & contrast

On white

13.67

#331A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#331A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331A73

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331A73	#FFFFFF	#000000	##FFFFFF
##331A73	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F76

Deuteranopia (green-blind)

#002B71

Tritanopia (blue-blind)

#1A3245

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331a73;
/* rgb */ color: rgb(51, 26, 115);
/* oklch */ color: oklch(31.5% 0.141 288.3);

Tailwind

colors: {
  custom: {
    50: '#73599c',
    500: '#331a73',
    950: '#000000',
  },
}

SCSS

$custom: #331a73;
$custom-light: #73599c;
$custom-dark: #000000;

JSON

{
  "hex": "#331a73",
  "rgb": {
    "r": 51,
    "g": 26,
    "b": 115
  },
  "hsl": {
    "h": 256.854,
    "s": 63.121,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31509,
    "c": 0.1415,
    "h": 288.3
  },
  "luminance": 0.0268
}

Semantic roles & 50–950 ramp

primary

#331A73

secondary

#8BA841

accent

#E642B8

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331A73

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

Preview Lab → · Contrast checker → · Palette generator →