#3964D4#3964D4

#3964D4 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.7% C 0.179 H 265.0°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3964D4
RGB	rgb(57, 100, 212)
HSL	hsl(223, 64%, 53%)
HSV	hsv(223, 73%, 83%)
CMYK	cmyk(73.1%, 52.8%, 0%, 16.9%)
CIE-LAB	lab(45.27, 23.69, -62.04)
CIE-LCH	lch(45.27, 66.41, 290.90°)
OKLab	oklab(53.67% -0.0155 -0.1786)
OKLCH	oklch(53.67% 0.179 265)
XYZ	xyz(18.1240, 14.7357, 64.1637)
Luminance	0.1474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964D4 #D4A939

analogous

#39B1D4 #3964D4 #5C39D4

triadic

#3964D4 #D43964 #64D439

tetradic

#3964D4 #D439B1 #D4A939 #39D45C

square

#3964D4 #D439B1 #D4A939 #39D45C

split-complementary

#3964D4 #D45C39 #B1D439

monochromatic

#1A3478 #254AAB #3964D4 #6B8BDF #9EB3EA

Accessibility & contrast

On white

5.32

#3964D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#3964D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964D4

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964D4	#FFFFFF	#000000	##FFFFFF
##3964D4	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1173D8

Deuteranopia (green-blind)

#0064D2

Tritanopia (blue-blind)

#007F92

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3964d4;
/* rgb */ color: rgb(57, 100, 212);
/* oklch */ color: oklch(53.7% 0.179 265.0);

Tailwind

colors: {
  custom: {
    50: '#848fe2',
    500: '#3964d4',
    950: '#000000',
  },
}

SCSS

$custom: #3964d4;
$custom-light: #848fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#3964d4",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 212
  },
  "hsl": {
    "h": 223.355,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.53668,
    "c": 0.17927,
    "h": 265
  },
  "luminance": 0.14738
}

Semantic roles & 50–950 ramp

primary

#3964D4

secondary

#D6C393

accent

#B940E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3964D4

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

Preview Lab → · Contrast checker → · Palette generator →