#3F46BF#3F46BF

#3F46BF is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.6% C 0.186 H 274.0°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F46BF
RGB	rgb(63, 70, 191)
HSL	hsl(237, 50%, 50%)
HSV	hsv(237, 67%, 75%)
CMYK	cmyk(67%, 63.4%, 0%, 25.1%)
CIE-LAB	lab(36.36, 36.08, -64.37)
CIE-LCH	lch(36.36, 73.79, 299.28°)
OKLab	oklab(46.6% 0.0131 -0.1857)
OKLCH	oklch(46.6% 0.186 274)
XYZ	xyz(13.6409, 9.1974, 50.3365)
Luminance	0.0920 (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

#3F46BF #BFB83F

analogous

#3F86BF #3F46BF #783FBF

triadic

#3F46BF #BF3F46 #46BF3F

tetradic

#3F46BF #BF3F86 #BFB83F #3FBF78

square

#3F46BF #BF3F86 #BFB83F #3FBF78

split-complementary

#3F46BF #BF783F #86BF3F

monochromatic

#212463 #303591 #3F46BF #6D72CF #9B9EDE

Accessibility & contrast

On white

7.39

#3F46BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3F46BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46BF

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46BF	#FFFFFF	#000000	##FFFFFF
##3F46BF	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC3

Deuteranopia (green-blind)

#0050BD

Tritanopia (blue-blind)

#00657C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f46bf;
/* rgb */ color: rgb(63, 70, 191);
/* oklch */ color: oklch(46.6% 0.186 274.0);

Tailwind

colors: {
  custom: {
    50: '#8479d3',
    500: '#3f46bf',
    950: '#000000',
  },
}

SCSS

$custom: #3f46bf;
$custom-light: #8479d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46bf",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 191
  },
  "hsl": {
    "h": 236.719,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.46601,
    "c": 0.18614,
    "h": 274
  },
  "luminance": 0.09199
}

Semantic roles & 50–950 ramp

primary

#3F46BF

secondary

#CAC790

accent

#D24EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F46BF

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

Preview Lab → · Contrast checker → · Palette generator →