#391AB3#391AB3

#391AB3 is a dark, highly saturated violet. Relative luminance 0.049; OKLCH L 39.0% C 0.216 H 278.8°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#391AB3
RGB	rgb(57, 26, 179)
HSL	hsl(252, 75%, 40%)
HSV	hsv(252, 85%, 70%)
CMYK	cmyk(68.2%, 85.5%, 0%, 29.8%)
CIE-LAB	lab(26.34, 55.04, -73.78)
CIE-LCH	lch(26.34, 92.05, 306.72°)
OKLab	oklab(39.01% 0.0331 -0.213)
OKLCH	oklch(39.01% 0.216 278.8)
XYZ	xyz(10.1908, 4.8624, 43.0406)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#391AB3 #94B31A

analogous

#1A47B3 #391AB3 #861AB3

triadic

#391AB3 #B3391A #1AB339

tetradic

#391AB3 #B31A47 #94B31A #1AB386

square

#391AB3 #B31A47 #94B31A #1AB386

split-complementary

#391AB3 #B3861A #47B31A

monochromatic

#170A48 #28127E #391AB3 #4F2AE0 #7B60E8

Accessibility & contrast

On white

10.65

#391AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#391AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #391AB3

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##391AB3	#FFFFFF	#000000	##FFFFFF
##391AB3	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0038B0

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #391ab3;
/* rgb */ color: rgb(57, 26, 179);
/* oklch */ color: oklch(39.0% 0.216 278.8);

Tailwind

colors: {
  custom: {
    50: '#825ecb',
    500: '#391ab3',
    950: '#000000',
  },
}

SCSS

$custom: #391ab3;
$custom-light: #825ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#391ab3",
  "rgb": {
    "r": 57,
    "g": 26,
    "b": 179
  },
  "hsl": {
    "h": 252.157,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39013,
    "c": 0.21558,
    "h": 278.8
  },
  "luminance": 0.04863
}

Semantic roles & 50–950 ramp

primary

#391AB3

secondary

#B6CC5D

accent

#F137CB

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #391AB3

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

Preview Lab → · Contrast checker → · Palette generator →