#391B77#391B77

#391B77 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.7% C 0.145 H 291.0°. Best body text is #FFFFFF at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#391B77
RGB	rgb(57, 27, 119)
HSL	hsl(260, 63%, 29%)
HSV	hsv(260, 77%, 47%)
CMYK	cmyk(52.1%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(19.99, 37.20, -47.19)
CIE-LCH	lch(19.99, 60.09, 308.25°)
OKLab	oklab(32.69% 0.0521 -0.1355)
OKLCH	oklch(32.69% 0.145 291)
XYZ	xyz(5.4081, 2.9854, 17.7405)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B77 #59771B

analogous

#1B2B77 #391B77 #671B77

triadic

#391B77 #77391B #1B7739

tetradic

#391B77 #771B2B #59771B #1B7767

square

#391B77 #771B2B #59771B #1B7767

split-complementary

#391B77 #77671B #2B771B

monochromatic

#0C0619 #211045 #391B77 #5126A9 #6C3AD2

Accessibility & contrast

On white

13.15

#391B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#391B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B77

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B77	#FFFFFF	#000000	##FFFFFF
##391B77	1.00	13.15	1.60	13.15
#FFFFFF	13.15	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002E75

Tritanopia (blue-blind)

#243447

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #391b77;
/* rgb */ color: rgb(57, 27, 119);
/* oklch */ color: oklch(32.7% 0.145 291.0);

Tailwind

colors: {
  custom: {
    50: '#775b9f',
    500: '#391b77',
    950: '#000000',
  },
}

SCSS

$custom: #391b77;
$custom-light: #775b9f;
$custom-dark: #000000;

JSON

{
  "hex": "#391b77",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 259.565,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32686,
    "c": 0.14517,
    "h": 291
  },
  "luminance": 0.02986
}

Semantic roles & 50–950 ramp

primary

#391B77

secondary

#89AB42

accent

#E642B0

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #391B77

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

Preview Lab → · Contrast checker → · Palette generator →