#391B8E#391B8E

#391B8E is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.0% C 0.173 H 285.2°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#391B8E
RGB	rgb(57, 27, 142)
HSL	hsl(256, 68%, 33%)
HSV	hsv(256, 81%, 56%)
CMYK	cmyk(59.9%, 81%, 0%, 44.3%)
CIE-LAB	lab(22.32, 43.99, -57.87)
CIE-LCH	lch(22.32, 72.69, 307.24°)
OKLab	oklab(35.03% 0.0452 -0.1667)
OKLCH	oklch(35.03% 0.173 285.2)
XYZ	xyz(6.9603, 3.6063, 25.9153)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391B8E #708E1B

analogous

#1B378E #391B8E #721B8E

triadic

#391B8E #8E391B #1B8E39

tetradic

#391B8E #8E1B37 #708E1B #1B8E72

square

#391B8E #8E1B37 #708E1B #1B8E72

split-complementary

#391B8E #8E721B #378E1B

monochromatic

#100727 #24115B #391B8E #4E25C1 #6E47DC

Accessibility & contrast

On white

12.20

#391B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#391B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391B8E

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391B8E	#FFFFFF	#000000	##FFFFFF
##391B8E	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#00328C

Tritanopia (blue-blind)

#073D55

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #391b8e;
/* rgb */ color: rgb(57, 27, 142);
/* oklch */ color: oklch(35.0% 0.173 285.2);

Tailwind

colors: {
  custom: {
    50: '#7b5cb0',
    500: '#391b8e',
    950: '#000000',
  },
}

SCSS

$custom: #391b8e;
$custom-light: #7b5cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#391b8e",
  "rgb": {
    "r": 57,
    "g": 27,
    "b": 142
  },
  "hsl": {
    "h": 255.652,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35029,
    "c": 0.17274,
    "h": 285.2
  },
  "luminance": 0.03607
}

Semantic roles & 50–950 ramp

primary

#391B8E

secondary

#9FBE47

accent

#EB3DBE

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #391B8E

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

Preview Lab → · Contrast checker → · Palette generator →