#3931C4#3931C4

#3931C4 is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.4% C 0.217 H 274.9°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#3931C4
RGB	rgb(57, 49, 196)
HSL	hsl(243, 60%, 48%)
HSV	hsv(243, 75%, 77%)
CMYK	cmyk(70.9%, 75%, 0%, 23.1%)
CIE-LAB	lab(31.92, 49.37, -74.61)
CIE-LCH	lch(31.92, 89.46, 303.49°)
OKLab	oklab(43.44% 0.0186 -0.2157)
OKLCH	oklch(43.44% 0.217 274.9)
XYZ	xyz(12.7462, 7.0508, 52.9031)
Luminance	0.0705 (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

#3931C4 #BCC431

analogous

#3173C4 #3931C4 #8231C4

triadic

#3931C4 #C43931 #31C439

tetradic

#3931C4 #C43173 #BCC431 #31C482

square

#3931C4 #C43173 #BCC431 #31C482

split-complementary

#3931C4 #C48231 #73C431

monochromatic

#1D1962 #2B2593 #3931C4 #635CD6 #928DE2

Accessibility & contrast

On white

8.71

#3931C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3931C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931C4

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931C4	#FFFFFF	#000000	##FFFFFF
##3931C4	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C8

Deuteranopia (green-blind)

#0044C1

Tritanopia (blue-blind)

#005C78

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3931c4;
/* rgb */ color: rgb(57, 49, 196);
/* oklch */ color: oklch(43.4% 0.217 274.9);

Tailwind

colors: {
  custom: {
    50: '#846cd7',
    500: '#3931c4',
    950: '#000000',
  },
}

SCSS

$custom: #3931c4;
$custom-light: #846cd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3931c4",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 196
  },
  "hsl": {
    "h": 243.265,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.43443,
    "c": 0.21654,
    "h": 274.9
  },
  "luminance": 0.07052
}

Semantic roles & 50–950 ramp

primary

#3931C4

secondary

#C9CD84

accent

#E345DB

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3931C4

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

Preview Lab → · Contrast checker → · Palette generator →