#3F4DAD#3F4DAD

#3F4DAD is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.4% C 0.153 H 272.7°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F4DAD
RGB	rgb(63, 77, 173)
HSL	hsl(232, 47%, 46%)
HSV	hsv(232, 64%, 68%)
CMYK	cmyk(63.6%, 55.5%, 0%, 32.2%)
CIE-LAB	lab(36.71, 25.34, -53.19)
CIE-LCH	lch(36.71, 58.91, 295.47°)
OKLab	oklab(46.42% 0.0073 -0.1528)
OKLCH	oklch(46.42% 0.153 272.7)
XYZ	xyz(12.2441, 9.3806, 40.6925)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4DAD #AD9F3F

analogous

#3F84AD #3F4DAD #683FAD

triadic

#3F4DAD #AD3F4D #4DAD3F

tetradic

#3F4DAD #AD3F84 #AD9F3F #3FAD68

square

#3F4DAD #AD3F84 #AD9F3F #3FAD68

split-complementary

#3F4DAD #AD683F #84AD3F

monochromatic

#1E2553 #2F3980 #3F4DAD #6370C6 #9099D7

Accessibility & contrast

On white

7.30

#3F4DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3F4DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4DAD

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4DAD	#FFFFFF	#000000	##FFFFFF
##3F4DAD	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)

#005BB0

Deuteranopia (green-blind)

#0052AB

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f4dad;
/* rgb */ color: rgb(63, 77, 173);
/* oklch */ color: oklch(46.4% 0.153 272.7);

Tailwind

colors: {
  custom: {
    50: '#807ec6',
    500: '#3f4dad',
    950: '#000000',
  },
}

SCSS

$custom: #3f4dad;
$custom-light: #807ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4dad",
  "rgb": {
    "r": 63,
    "g": 77,
    "b": 173
  },
  "hsl": {
    "h": 232.364,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46417,
    "c": 0.15293,
    "h": 272.7
  },
  "luminance": 0.09382
}

Semantic roles & 50–950 ramp

primary

#3F4DAD

secondary

#C2BA86

accent

#C552D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F4DAD

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

Preview Lab → · Contrast checker → · Palette generator →