#3969D0#3969D0

#3969D0 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.4% C 0.168 H 263.2°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3969D0
RGB	rgb(57, 105, 208)
HSL	hsl(221, 62%, 52%)
HSV	hsv(221, 73%, 82%)
CMYK	cmyk(72.6%, 49.5%, 0%, 18.4%)
CIE-LAB	lab(46.35, 19.04, -58.01)
CIE-LCH	lch(46.35, 61.06, 288.17°)
OKLab	oklab(54.4% -0.02 -0.1667)
OKLCH	oklch(54.4% 0.168 263.2)
XYZ	xyz(18.1200, 15.5251, 61.7040)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969D0 #D0A039

analogous

#39B5D0 #3969D0 #5539D0

triadic

#3969D0 #D03969 #69D039

tetradic

#3969D0 #D039B5 #D0A039 #39D055

square

#3969D0 #D039B5 #D0A039 #39D055

split-complementary

#3969D0 #D05539 #B5D039

monochromatic

#1B3773 #274FA5 #3969D0 #6A8EDC #9CB4E7

Accessibility & contrast

On white

5.12

#3969D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#3969D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969D0

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969D0	#FFFFFF	#000000	##FFFFFF
##3969D0	1.00	5.12	4.11	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C75D4

Deuteranopia (green-blind)

#0067CE

Tritanopia (blue-blind)

#008292

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3969d0;
/* rgb */ color: rgb(57, 105, 208);
/* oklch */ color: oklch(54.4% 0.168 263.2);

Tailwind

colors: {
  custom: {
    50: '#8393df',
    500: '#3969d0',
    950: '#000000',
  },
}

SCSS

$custom: #3969d0;
$custom-light: #8393df;
$custom-dark: #000000;

JSON

{
  "hex": "#3969d0",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 208
  },
  "hsl": {
    "h": 220.927,
    "s": 61.633,
    "l": 51.961
  },
  "oklch": {
    "l": 0.54399,
    "c": 0.16786,
    "h": 263.2
  },
  "luminance": 0.15527
}

Semantic roles & 50–950 ramp

primary

#3969D0

secondary

#D3BE91

accent

#B143E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3969D0

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

Preview Lab → · Contrast checker → · Palette generator →