#3969D3#3969D3

#3969D3 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.6% C 0.172 H 263.4°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3969D3
RGB	rgb(57, 105, 211)
HSL	hsl(221, 64%, 53%)
HSV	hsv(221, 73%, 83%)
CMYK	cmyk(73%, 50.2%, 0%, 17.3%)
CIE-LAB	lab(46.54, 20.14, -59.41)
CIE-LCH	lch(46.54, 62.73, 288.73°)
OKLab	oklab(54.61% -0.0196 -0.1708)
OKLCH	oklch(54.61% 0.172 263.4)
XYZ	xyz(18.4926, 15.6742, 63.6662)
Luminance	0.1568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969D3 #D3A339

analogous

#39B6D3 #3969D3 #5639D3

triadic

#3969D3 #D33969 #69D339

tetradic

#3969D3 #D339B6 #D3A339 #39D356

square

#3969D3 #D339B6 #D3A339 #39D356

split-complementary

#3969D3 #D35639 #B6D339

monochromatic

#1A3777 #264FA9 #3969D3 #6B8FDE #9DB5E9

Accessibility & contrast

On white

5.08

#3969D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#3969D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969D3

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969D3	#FFFFFF	#000000	##FFFFFF
##3969D3	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2876D7

Deuteranopia (green-blind)

#0068D1

Tritanopia (blue-blind)

#008294

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3969d3;
/* rgb */ color: rgb(57, 105, 211);
/* oklch */ color: oklch(54.6% 0.172 263.4);

Tailwind

colors: {
  custom: {
    50: '#8393e1',
    500: '#3969d3',
    950: '#000000',
  },
}

SCSS

$custom: #3969d3;
$custom-light: #8393e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3969d3",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 211
  },
  "hsl": {
    "h": 221.299,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.54614,
    "c": 0.17189,
    "h": 263.4
  },
  "luminance": 0.15676
}

Semantic roles & 50–950 ramp

primary

#3969D3

secondary

#D5C092

accent

#B341E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3969D3

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

Preview Lab → · Contrast checker → · Palette generator →