#3931C1#3931C1

#3931C1 is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 43.1% C 0.213 H 275.2°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#3931C1
RGB	rgb(57, 49, 193)
HSL	hsl(243, 60%, 47%)
HSV	hsv(243, 75%, 76%)
CMYK	cmyk(70.5%, 74.6%, 0%, 24.3%)
CIE-LAB	lab(31.61, 48.41, -73.35)
CIE-LCH	lch(31.61, 87.89, 303.42°)
OKLab	oklab(43.13% 0.0192 -0.2121)
OKLCH	oklch(43.13% 0.213 275.2)
XYZ	xyz(12.4081, 6.9156, 51.1227)
Luminance	0.0692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931C1 #B9C131

analogous

#3171C1 #3931C1 #8131C1

triadic

#3931C1 #C13931 #31C139

tetradic

#3931C1 #C13171 #B9C131 #31C181

square

#3931C1 #C13171 #B9C131 #31C181

split-complementary

#3931C1 #C18131 #71C131

monochromatic

#1C185F #2B2590 #3931C1 #615AD5 #908BE2

Accessibility & contrast

On white

8.81

#3931C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3931C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931C1

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931C1	#FFFFFF	#000000	##FFFFFF
##3931C1	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C5

Deuteranopia (green-blind)

#0044BE

Tritanopia (blue-blind)

#005B77

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3931c1;
/* rgb */ color: rgb(57, 49, 193);
/* oklch */ color: oklch(43.1% 0.213 275.2);

Tailwind

colors: {
  custom: {
    50: '#836bd5',
    500: '#3931c1',
    950: '#000000',
  },
}

SCSS

$custom: #3931c1;
$custom-light: #836bd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3931c1",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 193
  },
  "hsl": {
    "h": 243.333,
    "s": 59.504,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43133,
    "c": 0.21297,
    "h": 275.2
  },
  "luminance": 0.06917
}

Semantic roles & 50–950 ramp

primary

#3931C1

secondary

#C8CC82

accent

#E345DA

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3931C1

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

Preview Lab → · Contrast checker → · Palette generator →