#3F46BA#3F46BA

#3F46BA is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.2% C 0.180 H 274.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F46BA
RGB	rgb(63, 70, 186)
HSL	hsl(237, 49%, 49%)
HSV	hsv(237, 66%, 73%)
CMYK	cmyk(66.1%, 62.4%, 0%, 27.1%)
CIE-LAB	lab(35.95, 34.36, -62.11)
CIE-LCH	lch(35.95, 70.98, 298.95°)
OKLab	oklab(46.17% 0.0134 -0.179)
OKLCH	oklch(46.17% 0.18 274.3)
XYZ	xyz(13.1000, 8.9811, 47.4880)
Luminance	0.0898 (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

#3F46BA #BAB33F

analogous

#3F84BA #3F46BA #763FBA

triadic

#3F46BA #BA3F46 #46BA3F

tetradic

#3F46BA #BA3F84 #BAB33F #3FBA76

square

#3F46BA #BA3F84 #BAB33F #3FBA76

split-complementary

#3F46BA #BA763F #84BA3F

monochromatic

#20245F #30358C #3F46BA #6A6FCC #979BDC

Accessibility & contrast

On white

7.51

#3F46BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3F46BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46BA

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46BA	#FFFFFF	#000000	##FFFFFF
##3F46BA	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABE

Deuteranopia (green-blind)

#004FB8

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f46ba;
/* rgb */ color: rgb(63, 70, 186);
/* oklch */ color: oklch(46.2% 0.180 274.3);

Tailwind

colors: {
  custom: {
    50: '#8379d0',
    500: '#3f46ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f46ba;
$custom-light: #8379d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46ba",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 186
  },
  "hsl": {
    "h": 236.585,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46169,
    "c": 0.17955,
    "h": 274.3
  },
  "luminance": 0.08982
}

Semantic roles & 50–950 ramp

primary

#3F46BA

secondary

#C8C48D

accent

#D14FD9

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3F46BA

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

Preview Lab → · Contrast checker → · Palette generator →