#3969D4#3969D4

#3969D4 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.7% C 0.173 H 263.5°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3969D4
RGB	rgb(57, 105, 212)
HSL	hsl(221, 64%, 53%)
HSV	hsv(221, 73%, 83%)
CMYK	cmyk(73.1%, 50.5%, 0%, 16.9%)
CIE-LAB	lab(46.61, 20.51, -59.87)
CIE-LCH	lch(46.61, 63.29, 288.91°)
OKLab	oklab(54.69% -0.0195 -0.1721)
OKLCH	oklch(54.69% 0.173 263.5)
XYZ	xyz(18.6184, 15.7245, 64.3285)
Luminance	0.1573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969D4 #D4A439

analogous

#39B7D4 #3969D4 #5639D4

triadic

#3969D4 #D43969 #69D439

tetradic

#3969D4 #D439B7 #D4A439 #39D456

square

#3969D4 #D439B7 #D4A439 #39D456

split-complementary

#3969D4 #D45639 #B7D439

monochromatic

#1A3778 #254EAB #3969D4 #6B8FDF #9EB5EA

Accessibility & contrast

On white

5.07

#3969D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3969D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969D4

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969D4	#FFFFFF	#000000	##FFFFFF
##3969D4	1.00	5.07	4.15	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2776D8

Deuteranopia (green-blind)

#0068D2

Tritanopia (blue-blind)

#008394

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3969d4;
/* rgb */ color: rgb(57, 105, 212);
/* oklch */ color: oklch(54.7% 0.173 263.5);

Tailwind

colors: {
  custom: {
    50: '#8393e2',
    500: '#3969d4',
    950: '#000000',
  },
}

SCSS

$custom: #3969d4;
$custom-light: #8393e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3969d4",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 212
  },
  "hsl": {
    "h": 221.419,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.54687,
    "c": 0.17324,
    "h": 263.5
  },
  "luminance": 0.15726
}

Semantic roles & 50–950 ramp

primary

#3969D4

secondary

#D6C193

accent

#B440E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3969D4

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

Preview Lab → · Contrast checker → · Palette generator →