#3966E2#3966E2

#3966E2 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 55.1% C 0.195 H 265.3°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3966E2
RGB	rgb(57, 102, 226)
HSL	hsl(224, 74%, 55%)
HSV	hsv(224, 75%, 89%)
CMYK	cmyk(74.8%, 54.9%, 0%, 11.4%)
CIE-LAB	lab(46.79, 27.54, -67.53)
CIE-LCH	lch(46.79, 72.93, 292.19°)
OKLab	oklab(55.13% -0.016 -0.1947)
OKLCH	oklch(55.13% 0.195 265.3)
XYZ	xyz(20.1613, 15.8613, 73.9357)
Luminance	0.1586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3966E2 #E2B539

analogous

#39BAE2 #3966E2 #6139E2

triadic

#3966E2 #E23966 #66E239

tetradic

#3966E2 #E239BA #E2B539 #39E261

square

#3966E2 #E239BA #E2B539 #39E261

split-complementary

#3966E2 #E26139 #BAE239

monochromatic

#15348C #1C48C1 #3966E2 #6E8FEA #A4B8F2

Accessibility & contrast

On white

5.03

#3966E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#3966E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3966E2

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3966E2	#FFFFFF	#000000	##FFFFFF
##3966E2	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077E6

Deuteranopia (green-blind)

#0067E0

Tritanopia (blue-blind)

#00859A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3966e2;
/* rgb */ color: rgb(57, 102, 226);
/* oklch */ color: oklch(55.1% 0.195 265.3);

Tailwind

colors: {
  custom: {
    50: '#8691ec',
    500: '#3966e2',
    950: '#000000',
  },
}

SCSS

$custom: #3966e2;
$custom-light: #8691ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3966e2",
  "rgb": {
    "r": 57,
    "g": 102,
    "b": 226
  },
  "hsl": {
    "h": 224.024,
    "s": 74.449,
    "l": 55.49
  },
  "oklch": {
    "l": 0.55133,
    "c": 0.19536,
    "h": 265.3
  },
  "luminance": 0.15864
}

Semantic roles & 50–950 ramp

primary

#3966E2

secondary

#DFCC98

accent

#BF37F1

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3966E2

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

Preview Lab → · Contrast checker → · Palette generator →