#331A72#331A72

#331A72 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.4% C 0.140 H 288.6°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#331A72
RGB	rgb(51, 26, 114)
HSL	hsl(257, 63%, 27%)
HSV	hsv(257, 77%, 45%)
CMYK	cmyk(55.3%, 77.2%, 0%, 55.3%)
CIE-LAB	lab(18.62, 35.24, -46.25)
CIE-LCH	lch(18.62, 58.14, 307.30°)
OKLab	oklab(31.41% 0.0446 -0.133)
OKLCH	oklch(31.41% 0.14 288.6)
XYZ	xyz(4.7710, 2.6573, 16.1778)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.28

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331A72 #59721A

analogous

#1A2D72 #331A72 #5F1A72

triadic

#331A72 #72331A #1A7233

tetradic

#331A72 #721A2D #59721A #1A725F

square

#331A72 #721A2D #59721A #1A725F

split-complementary

#331A72 #725F1A #2D721A

monochromatic

#0B0619 #1D0F40 #331A72 #4925A4 #6235D1

Accessibility & contrast

On white

13.71

#331A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#331A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331A72

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331A72	#FFFFFF	#000000	##FFFFFF
##331A72	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F75

Deuteranopia (green-blind)

#002B70

Tritanopia (blue-blind)

#1B3244

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #331a72;
/* rgb */ color: rgb(51, 26, 114);
/* oklch */ color: oklch(31.4% 0.140 288.6);

Tailwind

colors: {
  custom: {
    50: '#72599b',
    500: '#331a72',
    950: '#000000',
  },
}

SCSS

$custom: #331a72;
$custom-light: #72599b;
$custom-dark: #000000;

JSON

{
  "hex": "#331a72",
  "rgb": {
    "r": 51,
    "g": 26,
    "b": 114
  },
  "hsl": {
    "h": 257.045,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31409,
    "c": 0.14024,
    "h": 288.6
  },
  "luminance": 0.02658
}

Semantic roles & 50–950 ramp

primary

#331A72

secondary

#8AA741

accent

#E642B7

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331A72

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

Preview Lab → · Contrast checker → · Palette generator →