#3F46BD#3F46BD

#3F46BD is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.4% C 0.184 H 274.1°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F46BD
RGB	rgb(63, 70, 189)
HSL	hsl(237, 50%, 49%)
HSV	hsv(237, 67%, 74%)
CMYK	cmyk(66.7%, 63%, 0%, 25.9%)
CIE-LAB	lab(36.20, 35.40, -63.47)
CIE-LCH	lch(36.20, 72.67, 299.15°)
OKLab	oklab(46.43% 0.0132 -0.183)
OKLCH	oklch(46.43% 0.184 274.1)
XYZ	xyz(13.4223, 9.1100, 49.1853)
Luminance	0.0911 (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

#3F46BD #BDB63F

analogous

#3F85BD #3F46BD #773FBD

triadic

#3F46BD #BD3F46 #46BD3F

tetradic

#3F46BD #BD3F85 #BDB63F #3FBD77

square

#3F46BD #BD3F85 #BDB63F #3FBD77

split-complementary

#3F46BD #BD773F #85BD3F

monochromatic

#202461 #30358F #3F46BD #6B71CE #999DDD

Accessibility & contrast

On white

7.44

#3F46BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#3F46BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46BD

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46BD	#FFFFFF	#000000	##FFFFFF
##3F46BD	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC1

Deuteranopia (green-blind)

#0050BB

Tritanopia (blue-blind)

#00647B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f46bd;
/* rgb */ color: rgb(63, 70, 189);
/* oklch */ color: oklch(46.4% 0.184 274.1);

Tailwind

colors: {
  custom: {
    50: '#8379d2',
    500: '#3f46bd',
    950: '#000000',
  },
}

SCSS

$custom: #3f46bd;
$custom-light: #8379d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46bd",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 189
  },
  "hsl": {
    "h": 236.667,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.46427,
    "c": 0.18352,
    "h": 274.1
  },
  "luminance": 0.09111
}

Semantic roles & 50–950 ramp

primary

#3F46BD

secondary

#C9C68F

accent

#D24EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F46BD

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

Preview Lab → · Contrast checker → · Palette generator →