#3F4AAF#3F4AAF

#3F4AAF is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.0% C 0.160 H 273.6°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#3F4AAF
RGB	rgb(63, 74, 175)
HSL	hsl(234, 47%, 47%)
HSV	hsv(234, 64%, 69%)
CMYK	cmyk(64%, 57.7%, 0%, 31.4%)
CIE-LAB	lab(36.08, 27.98, -55.40)
CIE-LCH	lch(36.08, 62.06, 296.80°)
OKLab	oklab(45.99% 0.0101 -0.1593)
OKLCH	oklch(45.99% 0.16 273.6)
XYZ	xyz(12.2340, 9.0484, 41.6509)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4AAF #AFA43F

analogous

#3F82AF #3F4AAF #6C3FAF

triadic

#3F4AAF #AF3F4A #4AAF3F

tetradic

#3F4AAF #AF3F82 #AFA43F #3FAF6C

square

#3F4AAF #AF3F82 #AFA43F #3FAF6C

split-complementary

#3F4AAF #AF6C3F #82AF3F

monochromatic

#1F2455 #2F3782 #3F4AAF #646EC7 #9198D7

Accessibility & contrast

On white

7.47

#3F4AAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#3F4AAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4AAF

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4AAF	#FFFFFF	#000000	##FFFFFF
##3F4AAF	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB2

Deuteranopia (green-blind)

#0050AD

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f4aaf;
/* rgb */ color: rgb(63, 74, 175);
/* oklch */ color: oklch(46.0% 0.160 273.6);

Tailwind

colors: {
  custom: {
    50: '#807cc8',
    500: '#3f4aaf',
    950: '#000000',
  },
}

SCSS

$custom: #3f4aaf;
$custom-light: #807cc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4aaf",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 175
  },
  "hsl": {
    "h": 234.107,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45994,
    "c": 0.15961,
    "h": 273.6
  },
  "luminance": 0.09049
}

Semantic roles & 50–950 ramp

primary

#3F4AAF

secondary

#C3BD87

accent

#CA51D7

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F4AAF

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

Preview Lab → · Contrast checker → · Palette generator →