#391B80#391B80

#391B80 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.6% C 0.156 H 288.5°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#391B80
RGB	rgb(57, 27, 128)
HSL	hsl(258, 65%, 30%)
HSV	hsv(258, 79%, 50%)
CMYK	cmyk(55.5%, 78.9%, 0%, 49.8%)
CIE-LAB	lab(20.87, 39.87, -51.47)
CIE-LCH	lch(20.87, 65.10, 307.76°)
OKLab	oklab(33.58% 0.0495 -0.148)
OKLCH	oklch(33.58% 0.156 288.5)
XYZ	xyz(5.9744, 3.2119, 20.7231)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B80 #62801B

analogous

#1B2F80 #391B80 #6B1B80

triadic

#391B80 #80391B #1B8039

tetradic

#391B80 #801B2F #62801B #1B806B

square

#391B80 #801B2F #62801B #1B806B

split-complementary

#391B80 #806B1B #2F801B

monochromatic

#0C061B #22104D #391B80 #5026B3 #6C3FD6

Accessibility & contrast

On white

12.79

#391B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#391B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B80

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B80	#FFFFFF	#000000	##FFFFFF
##391B80	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#00307E

Tritanopia (blue-blind)

#1C374D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #391b80;
/* rgb */ color: rgb(57, 27, 128);
/* oklch */ color: oklch(33.6% 0.156 288.5);

Tailwind

colors: {
  custom: {
    50: '#785ba6',
    500: '#391b80',
    950: '#000000',
  },
}

SCSS

$custom: #391b80;
$custom-light: #785ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#391b80",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 128
  },
  "hsl": {
    "h": 257.822,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3358,
    "c": 0.15609,
    "h": 288.5
  },
  "luminance": 0.03212
}

Semantic roles & 50–950 ramp

primary

#391B80

secondary

#92B443

accent

#E840B6

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #391B80

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

Preview Lab → · Contrast checker → · Palette generator →