#391FB4#391FB4

#391FB4 is a dark, highly saturated violet. Relative luminance 0.051; OKLCH L 39.6% C 0.213 H 278.3°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#391FB4
RGB	rgb(57, 31, 180)
HSL	hsl(250, 71%, 41%)
HSV	hsv(250, 83%, 71%)
CMYK	cmyk(68.3%, 82.8%, 0%, 29.4%)
CIE-LAB	lab(27.14, 53.29, -73.05)
CIE-LCH	lch(27.14, 90.42, 306.11°)
OKLab	oklab(39.6% 0.0308 -0.211)
OKLCH	oklch(39.6% 0.213 278.3)
XYZ	xyz(10.4129, 5.1442, 43.6153)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391FB4 #9AB41F

analogous

#1F50B4 #391FB4 #841FB4

triadic

#391FB4 #B4391F #1FB439

tetradic

#391FB4 #B41F50 #9AB41F #1FB484

square

#391FB4 #B41F50 #9AB41F #1FB484

split-complementary

#391FB4 #B4841F #50B41F

monochromatic

#180D4C #281680 #391FB4 #5134DC #7E68E5

Accessibility & contrast

On white

10.35

#391FB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#391FB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391FB4

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391FB4	#FFFFFF	#000000	##FFFFFF
##391FB4	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B8

Deuteranopia (green-blind)

#003AB1

Tritanopia (blue-blind)

#004E6B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #391fb4;
/* rgb */ color: rgb(57, 31, 180);
/* oklch */ color: oklch(39.6% 0.213 278.3);

Tailwind

colors: {
  custom: {
    50: '#8261cc',
    500: '#391fb4',
    950: '#000000',
  },
}

SCSS

$custom: #391fb4;
$custom-light: #8261cc;
$custom-dark: #000000;

JSON

{
  "hex": "#391fb4",
  "rgb": {
    "r": 57,
    "g": 31,
    "b": 180
  },
  "hsl": {
    "h": 250.47,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39597,
    "c": 0.21323,
    "h": 278.3
  },
  "luminance": 0.05145
}

Semantic roles & 50–950 ramp

primary

#391FB4

secondary

#B9CB64

accent

#ED3ACE

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #391FB4

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

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