#3964CE#3964CE

#3964CE is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.2% C 0.171 H 264.6°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3964CE
RGB	rgb(57, 100, 206)
HSL	hsl(223, 60%, 52%)
HSV	hsv(223, 72%, 81%)
CMYK	cmyk(72.3%, 51.5%, 0%, 19.2%)
CIE-LAB	lab(44.86, 21.50, -59.27)
CIE-LCH	lch(44.86, 63.05, 289.93°)
OKLab	oklab(53.22% -0.0161 -0.1705)
OKLCH	oklch(53.22% 0.171 264.6)
XYZ	xyz(17.3812, 14.4386, 60.2515)
Luminance	0.1444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964CE #CEA339

analogous

#39AECE #3964CE #5939CE

triadic

#3964CE #CE3964 #64CE39

tetradic

#3964CE #CE39AE #CEA339 #39CE59

square

#3964CE #CE39AE #CEA339 #39CE59

split-complementary

#3964CE #CE5939 #AECE39

monochromatic

#1C3471 #284BA2 #3964CE #6A8ADA #9BB1E6

Accessibility & contrast

On white

5.40

#3964CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#3964CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964CE

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964CE	#FFFFFF	#000000	##FFFFFF
##3964CE	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F71D2

Deuteranopia (green-blind)

#0064CC

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3964ce;
/* rgb */ color: rgb(57, 100, 206);
/* oklch */ color: oklch(53.2% 0.171 264.6);

Tailwind

colors: {
  custom: {
    50: '#828fde',
    500: '#3964ce',
    950: '#000000',
  },
}

SCSS

$custom: #3964ce;
$custom-light: #828fde;
$custom-dark: #000000;

JSON

{
  "hex": "#3964ce",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 206
  },
  "hsl": {
    "h": 222.685,
    "s": 60.324,
    "l": 51.569
  },
  "oklch": {
    "l": 0.53222,
    "c": 0.17123,
    "h": 264.6
  },
  "luminance": 0.1444
}

Semantic roles & 50–950 ramp

primary

#3964CE

secondary

#D2BF91

accent

#B644E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3964CE

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

Preview Lab → · Contrast checker → · Palette generator →