#3F47D2#3F47D2

#3F47D2 is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.5% C 0.209 H 273.0°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F47D2
RGB	rgb(63, 71, 210)
HSL	hsl(237, 62%, 54%)
HSV	hsv(237, 70%, 82%)
CMYK	cmyk(70%, 66.2%, 0%, 17.6%)
CIE-LAB	lab(38.23, 41.96, -72.36)
CIE-LCH	lch(38.23, 83.64, 300.11°)
OKLab	oklab(48.46% 0.011 -0.2091)
OKLCH	oklch(48.46% 0.209 273)
XYZ	xyz(15.9321, 10.2148, 62.0923)
Luminance	0.1022 (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

#3F47D2 #D2CA3F

analogous

#3F90D2 #3F47D2 #803FD2

triadic

#3F47D2 #D23F47 #47D23F

tetradic

#3F47D2 #D23F90 #D2CA3F #3FD280

square

#3F47D2 #D23F90 #D2CA3F #3FD280

split-complementary

#3F47D2 #D2803F #90D23F

monochromatic

#1D227A #282FAC #3F47D2 #7177DE #A2A6E9

Accessibility & contrast

On white

6.90

#3F47D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3F47D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F47D2

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F47D2	#FFFFFF	#000000	##FFFFFF
##3F47D2	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D6

Deuteranopia (green-blind)

#0053CF

Tritanopia (blue-blind)

#006C86

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f47d2;
/* rgb */ color: rgb(63, 71, 210);
/* oklch */ color: oklch(48.5% 0.209 273.0);

Tailwind

colors: {
  custom: {
    50: '#887be1',
    500: '#3f47d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f47d2;
$custom-light: #887be1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f47d2",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 210
  },
  "hsl": {
    "h": 236.735,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.48464,
    "c": 0.20938,
    "h": 273
  },
  "luminance": 0.10216
}

Semantic roles & 50–950 ramp

primary

#3F47D2

secondary

#D6D297

accent

#DC43E5

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F47D2

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

Preview Lab → · Contrast checker → · Palette generator →