#3931BD#3931BD

#3931BD is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.7% C 0.208 H 275.5°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#3931BD
RGB	rgb(57, 49, 189)
HSL	hsl(243, 59%, 47%)
HSV	hsv(243, 74%, 74%)
CMYK	cmyk(69.8%, 74.1%, 0%, 25.9%)
CIE-LAB	lab(31.21, 47.13, -71.67)
CIE-LCH	lch(31.21, 85.78, 303.33°)
OKLab	oklab(42.72% 0.02 -0.2072)
OKLCH	oklch(42.72% 0.208 275.5)
XYZ	xyz(11.9679, 6.7395, 48.8044)
Luminance	0.0674 (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

#3931BD #B5BD31

analogous

#316FBD #3931BD #7F31BD

triadic

#3931BD #BD3931 #31BD39

tetradic

#3931BD #BD316F #B5BD31 #31BD7F

square

#3931BD #BD316F #B5BD31 #31BD7F

split-complementary

#3931BD #BD7F31 #6FBD31

monochromatic

#1C185C #2A248C #3931BD #5F58D4 #8D88E0

Accessibility & contrast

On white

8.94

#3931BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3931BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931BD

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931BD	#FFFFFF	#000000	##FFFFFF
##3931BD	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050C1

Deuteranopia (green-blind)

#0043BA

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3931bd;
/* rgb */ color: rgb(57, 49, 189);
/* oklch */ color: oklch(42.7% 0.208 275.5);

Tailwind

colors: {
  custom: {
    50: '#826bd2',
    500: '#3931bd',
    950: '#000000',
  },
}

SCSS

$custom: #3931bd;
$custom-light: #826bd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3931bd",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 189
  },
  "hsl": {
    "h": 243.429,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.42723,
    "c": 0.20815,
    "h": 275.5
  },
  "luminance": 0.06741
}

Semantic roles & 50–950 ramp

primary

#3931BD

secondary

#C6CA80

accent

#E246D9

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3931BD

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

Preview Lab → · Contrast checker → · Palette generator →