#3F39D1#3F39D1

#3F39D1 is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.2% C 0.223 H 275.0°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F39D1
RGB	rgb(63, 57, 209)
HSL	hsl(242, 62%, 52%)
HSV	hsv(242, 73%, 82%)
CMYK	cmyk(69.9%, 72.7%, 0%, 18%)
CIE-LAB	lab(35.17, 49.74, -76.80)
CIE-LCH	lch(35.17, 91.50, 302.93°)
OKLab	oklab(46.24% 0.0194 -0.222)
OKLCH	oklch(46.24% 0.223 275)
XYZ	xyz(15.0178, 8.5850, 61.1749)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.63

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F39D1 #CBD139

analogous

#397FD1 #3F39D1 #8B39D1

triadic

#3F39D1 #D13F39 #39D13F

tetradic

#3F39D1 #D1397F #CBD139 #39D18B

square

#3F39D1 #D1397F #CBD139 #39D18B

split-complementary

#3F39D1 #D18B39 #7FD139

monochromatic

#1F1B75 #2C27A6 #3F39D1 #6F6BDD #9F9CE8

Accessibility & contrast

On white

7.73

#3F39D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3F39D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39D1

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F39D1	#FFFFFF	#000000	##FFFFFF
##3F39D1	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AD5

Deuteranopia (green-blind)

#004CCE

Tritanopia (blue-blind)

#006482

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f39d1;
/* rgb */ color: rgb(63, 57, 209);
/* oklch */ color: oklch(46.2% 0.223 275.0);

Tailwind

colors: {
  custom: {
    50: '#8871e0',
    500: '#3f39d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f39d1;
$custom-light: #8871e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f39d1",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 209
  },
  "hsl": {
    "h": 242.368,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.4624,
    "c": 0.22289,
    "h": 275
  },
  "luminance": 0.08586
}

Semantic roles & 50–950 ramp

primary

#3F39D1

secondary

#D1D492

accent

#E542DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F39D1

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

Preview Lab → · Contrast checker → · Palette generator →