#391D81#391D81

#391D81 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.9% C 0.155 H 287.9°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#391D81
RGB	rgb(57, 29, 129)
HSL	hsl(257, 63%, 31%)
HSV	hsv(257, 78%, 51%)
CMYK	cmyk(55.8%, 77.5%, 0%, 49.4%)
CIE-LAB	lab(21.33, 39.14, -51.35)
CIE-LCH	lch(21.33, 64.56, 307.32°)
OKLab	oklab(33.93% 0.0476 -0.1477)
OKLCH	oklch(33.93% 0.155 287.9)
XYZ	xyz(6.0880, 3.3333, 21.0872)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391D81 #65811D

analogous

#1D3381 #391D81 #6B1D81

triadic

#391D81 #81391D #1D8139

tetradic

#391D81 #811D33 #65811D #1D816B

square

#391D81 #811D33 #65811D #1D816B

split-complementary

#391D81 #816B1D #33811D

monochromatic

#0D071D #23124F #391D81 #4F28B3 #6C44D5

Accessibility & contrast

On white

12.60

#391D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#391D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391D81

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391D81	#FFFFFF	#000000	##FFFFFF
##391D81	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003584

Deuteranopia (green-blind)

#00307F

Tritanopia (blue-blind)

#1B394E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #391d81;
/* rgb */ color: rgb(57, 29, 129);
/* oklch */ color: oklch(33.9% 0.155 287.9);

Tailwind

colors: {
  custom: {
    50: '#785ca7',
    500: '#391d81',
    950: '#000000',
  },
}

SCSS

$custom: #391d81;
$custom-light: #785ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#391d81",
  "rgb": {
    "r": 57,
    "g": 29,
    "b": 129
  },
  "hsl": {
    "h": 256.8,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.33932,
    "c": 0.15519,
    "h": 287.9
  },
  "luminance": 0.03334
}

Semantic roles & 50–950 ramp

primary

#391D81

secondary

#95B446

accent

#E641B8

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #391D81

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

Preview Lab → · Contrast checker → · Palette generator →