#3F46C3#3F46C3

#3F46C3 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 47.0% C 0.191 H 273.9°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F46C3
RGB	rgb(63, 70, 195)
HSL	hsl(237, 52%, 51%)
HSV	hsv(237, 68%, 76%)
CMYK	cmyk(67.7%, 64.1%, 0%, 23.5%)
CIE-LAB	lab(36.70, 37.46, -66.16)
CIE-LCH	lch(36.70, 76.02, 299.52°)
OKLab	oklab(46.95% 0.0129 -0.1909)
OKLCH	oklch(46.95% 0.191 273.9)
XYZ	xyz(14.0871, 9.3759, 52.6865)
Luminance	0.0938 (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

#3F46C3 #C3BC3F

analogous

#3F88C3 #3F46C3 #7A3FC3

triadic

#3F46C3 #C33F46 #46C33F

tetradic

#3F46C3 #C33F88 #C3BC3F #3FC37A

square

#3F46C3 #C33F88 #C3BC3F #3FC37A

split-complementary

#3F46C3 #C37A3F #88C33F

monochromatic

#202467 #2F3496 #3F46C3 #6E73D2 #9CA0E0

Accessibility & contrast

On white

7.30

#3F46C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3F46C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46C3

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46C3	#FFFFFF	#000000	##FFFFFF
##3F46C3	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC7

Deuteranopia (green-blind)

#0050C1

Tritanopia (blue-blind)

#00667E

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f46c3;
/* rgb */ color: rgb(63, 70, 195);
/* oklch */ color: oklch(47.0% 0.191 273.9);

Tailwind

colors: {
  custom: {
    50: '#847ad6',
    500: '#3f46c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f46c3;
$custom-light: #847ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46c3",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 195
  },
  "hsl": {
    "h": 236.818,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.46951,
    "c": 0.19136,
    "h": 273.9
  },
  "luminance": 0.09377
}

Semantic roles & 50–950 ramp

primary

#3F46C3

secondary

#CCC992

accent

#D44CDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F46C3

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

Preview Lab → · Contrast checker → · Palette generator →