#3F47C2#3F47C2

#3F47C2 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 47.0% C 0.189 H 273.7°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#3F47C2
RGB	rgb(63, 71, 194)
HSL	hsl(236, 52%, 50%)
HSV	hsv(236, 68%, 76%)
CMYK	cmyk(67.5%, 63.4%, 0%, 23.9%)
CIE-LAB	lab(36.85, 36.49, -65.32)
CIE-LCH	lch(36.85, 74.83, 299.19°)
OKLab	oklab(47.04% 0.0122 -0.1885)
OKLCH	oklch(47.04% 0.189 273.7)
XYZ	xyz(14.0375, 9.4570, 52.1141)
Luminance	0.0946 (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

#3F47C2 #C2BA3F

analogous

#3F88C2 #3F47C2 #783FC2

triadic

#3F47C2 #C23F47 #47C23F

tetradic

#3F47C2 #C23F88 #C2BA3F #3FC278

square

#3F47C2 #C23F88 #C2BA3F #3FC278

split-complementary

#3F47C2 #C2783F #88C23F

monochromatic

#202566 #2F3595 #3F47C2 #6D74D1 #9CA0E0

Accessibility & contrast

On white

7.26

#3F47C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#3F47C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F47C2

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F47C2	#FFFFFF	#000000	##FFFFFF
##3F47C2	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC6

Deuteranopia (green-blind)

#0051C0

Tritanopia (blue-blind)

#00677E

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f47c2;
/* rgb */ color: rgb(63, 71, 194);
/* oklch */ color: oklch(47.0% 0.189 273.7);

Tailwind

colors: {
  custom: {
    50: '#847ad5',
    500: '#3f47c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f47c2;
$custom-light: #847ad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f47c2",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 194
  },
  "hsl": {
    "h": 236.336,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.47036,
    "c": 0.18887,
    "h": 273.7
  },
  "luminance": 0.09458
}

Semantic roles & 50–950 ramp

primary

#3F47C2

secondary

#CCC891

accent

#D34DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F47C2

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

Preview Lab → · Contrast checker → · Palette generator →