#3F46BE#3F46BE

#3F46BE is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.5% C 0.185 H 274.1°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F46BE
RGB	rgb(63, 70, 190)
HSL	hsl(237, 50%, 50%)
HSV	hsv(237, 67%, 75%)
CMYK	cmyk(66.8%, 63.2%, 0%, 25.5%)
CIE-LAB	lab(36.28, 35.74, -63.92)
CIE-LCH	lch(36.28, 73.23, 299.21°)
OKLab	oklab(46.51% 0.0132 -0.1844)
OKLCH	oklch(46.51% 0.185 274.1)
XYZ	xyz(13.5312, 9.1536, 49.7589)
Luminance	0.0916 (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

#3F46BE #BEB73F

analogous

#3F86BE #3F46BE #783FBE

triadic

#3F46BE #BE3F46 #46BE3F

tetradic

#3F46BE #BE3F86 #BEB73F #3FBE78

square

#3F46BE #BE3F86 #BEB73F #3FBE78

split-complementary

#3F46BE #BE783F #86BE3F

monochromatic

#212462 #303590 #3F46BE #6C71CE #9A9EDD

Accessibility & contrast

On white

7.42

#3F46BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#3F46BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46BE

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46BE	#FFFFFF	#000000	##FFFFFF
##3F46BE	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC2

Deuteranopia (green-blind)

#0050BC

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f46be;
/* rgb */ color: rgb(63, 70, 190);
/* oklch */ color: oklch(46.5% 0.185 274.1);

Tailwind

colors: {
  custom: {
    50: '#8379d3',
    500: '#3f46be',
    950: '#000000',
  },
}

SCSS

$custom: #3f46be;
$custom-light: #8379d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46be",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 190
  },
  "hsl": {
    "h": 236.693,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.46514,
    "c": 0.18483,
    "h": 274.1
  },
  "luminance": 0.09155
}

Semantic roles & 50–950 ramp

primary

#3F46BE

secondary

#C9C68F

accent

#D24EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F46BE

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

Preview Lab → · Contrast checker → · Palette generator →