#3931BE#3931BE

#3931BE is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.8% C 0.209 H 275.4°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3931BE
RGB	rgb(57, 49, 190)
HSL	hsl(243, 59%, 47%)
HSV	hsv(243, 74%, 75%)
CMYK	cmyk(70%, 74.2%, 0%, 25.5%)
CIE-LAB	lab(31.31, 47.45, -72.09)
CIE-LCH	lch(31.31, 86.31, 303.35°)
OKLab	oklab(42.83% 0.0198 -0.2084)
OKLCH	oklch(42.83% 0.209 275.4)
XYZ	xyz(12.0769, 6.7831, 49.3780)
Luminance	0.0678 (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

#3931BE #B6BE31

analogous

#3170BE #3931BE #8031BE

triadic

#3931BE #BE3931 #31BE39

tetradic

#3931BE #BE3170 #B6BE31 #31BE80

square

#3931BE #BE3170 #B6BE31 #31BE80

split-complementary

#3931BE #BE8031 #70BE31

monochromatic

#1C185D #2A248D #3931BE #5F58D4 #8E89E1

Accessibility & contrast

On white

8.91

#3931BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3931BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931BE

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931BE	#FFFFFF	#000000	##FFFFFF
##3931BE	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050C2

Deuteranopia (green-blind)

#0043BB

Tritanopia (blue-blind)

#005A75

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3931be;
/* rgb */ color: rgb(57, 49, 190);
/* oklch */ color: oklch(42.8% 0.209 275.4);

Tailwind

colors: {
  custom: {
    50: '#836bd3',
    500: '#3931be',
    950: '#000000',
  },
}

SCSS

$custom: #3931be;
$custom-light: #836bd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3931be",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 190
  },
  "hsl": {
    "h": 243.404,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.42825,
    "c": 0.20936,
    "h": 275.4
  },
  "luminance": 0.06784
}

Semantic roles & 50–950 ramp

primary

#3931BE

secondary

#C6CA80

accent

#E246D9

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3931BE

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

Preview Lab → · Contrast checker → · Palette generator →