#3F46C2#3F46C2

#3F46C2 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.9% C 0.190 H 273.9°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#3F46C2
RGB	rgb(63, 70, 194)
HSL	hsl(237, 52%, 50%)
HSV	hsv(237, 68%, 76%)
CMYK	cmyk(67.5%, 63.9%, 0%, 23.9%)
CIE-LAB	lab(36.61, 37.11, -65.71)
CIE-LCH	lch(36.61, 75.47, 299.46°)
OKLab	oklab(46.86% 0.0129 -0.1896)
OKLCH	oklch(46.86% 0.19 273.9)
XYZ	xyz(13.9744, 9.3308, 52.0931)
Luminance	0.0933 (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

#3F46C2 #C2BB3F

analogous

#3F87C2 #3F46C2 #793FC2

triadic

#3F46C2 #C23F46 #46C23F

tetradic

#3F46C2 #C23F87 #C2BB3F #3FC279

square

#3F46C2 #C23F87 #C2BB3F #3FC279

split-complementary

#3F46C2 #C2793F #87C23F

monochromatic

#202466 #2F3595 #3F46C2 #6D73D1 #9CA0E0

Accessibility & contrast

On white

7.33

#3F46C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#3F46C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46C2

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46C2	#FFFFFF	#000000	##FFFFFF
##3F46C2	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC6

Deuteranopia (green-blind)

#0050C0

Tritanopia (blue-blind)

#00667D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f46c2;
/* rgb */ color: rgb(63, 70, 194);
/* oklch */ color: oklch(46.9% 0.190 273.9);

Tailwind

colors: {
  custom: {
    50: '#8479d5',
    500: '#3f46c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f46c2;
$custom-light: #8479d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46c2",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 194
  },
  "hsl": {
    "h": 236.794,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.46863,
    "c": 0.19006,
    "h": 273.9
  },
  "luminance": 0.09332
}

Semantic roles & 50–950 ramp

primary

#3F46C2

secondary

#CCC891

accent

#D44DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F46C2

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

Preview Lab → · Contrast checker → · Palette generator →