#3931CE#3931CE

#3931CE is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.5% C 0.228 H 274.1°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#3931CE
RGB	rgb(57, 49, 206)
HSL	hsl(243, 62%, 50%)
HSV	hsv(243, 76%, 81%)
CMYK	cmyk(72.3%, 76.2%, 0%, 19.2%)
CIE-LAB	lab(32.97, 52.51, -78.72)
CIE-LCH	lch(32.97, 94.63, 303.71°)
OKLab	oklab(44.49% 0.0165 -0.2277)
OKLCH	oklch(44.49% 0.228 274.1)
XYZ	xyz(13.9225, 7.5213, 59.0986)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.55

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931CE #C6CE31

analogous

#3178CE #3931CE #8731CE

triadic

#3931CE #CE3931 #31CE39

tetradic

#3931CE #CE3178 #C6CE31 #31CE87

square

#3931CE #CE3178 #C6CE31 #31CE87

split-complementary

#3931CE #CE8731 #78CE31

monochromatic

#1E196B #2B259D #3931CE #6962DA #9894E6

Accessibility & contrast

On white

8.38

#3931CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3931CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931CE

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931CE	#FFFFFF	#000000	##FFFFFF
##3931CE	1.00	8.38	2.50	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055D2

Deuteranopia (green-blind)

#0046CB

Tritanopia (blue-blind)

#00607E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3931ce;
/* rgb */ color: rgb(57, 49, 206);
/* oklch */ color: oklch(44.5% 0.228 274.1);

Tailwind

colors: {
  custom: {
    50: '#866cde',
    500: '#3931ce',
    950: '#000000',
  },
}

SCSS

$custom: #3931ce;
$custom-light: #866cde;
$custom-dark: #000000;

JSON

{
  "hex": "#3931ce",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 206
  },
  "hsl": {
    "h": 243.057,
    "s": 61.569,
    "l": 50
  },
  "oklch": {
    "l": 0.44487,
    "c": 0.22831,
    "h": 274.1
  },
  "luminance": 0.07523
}

Semantic roles & 50–950 ramp

primary

#3931CE

secondary

#CDD18A

accent

#E543DC

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3931CE

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

Preview Lab → · Contrast checker → · Palette generator →