#3964C8#3964C8

#3964C8 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.8% C 0.163 H 264.1°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3964C8
RGB	rgb(57, 100, 200)
HSL	hsl(222, 57%, 50%)
HSV	hsv(222, 72%, 78%)
CMYK	cmyk(71.5%, 50%, 0%, 21.6%)
CIE-LAB	lab(44.45, 19.29, -56.48)
CIE-LCH	lch(44.45, 59.68, 288.86°)
OKLab	oklab(52.79% -0.0168 -0.1622)
OKLCH	oklch(52.79% 0.163 264.1)
XYZ	xyz(16.6662, 14.1526, 56.4858)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964C8 #C89D39

analogous

#39ACC8 #3964C8 #5539C8

triadic

#3964C8 #C83964 #64C839

tetradic

#3964C8 #C839AC #C89D39 #39C855

square

#3964C8 #C839AC #C89D39 #39C855

split-complementary

#3964C8 #C85539 #ACC839

monochromatic

#1D3469 #2B4C99 #3964C8 #6989D5 #99AFE3

Accessibility & contrast

On white

5.48

#3964C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3964C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964C8

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964C8	#FFFFFF	#000000	##FFFFFF
##3964C8	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2970CC

Deuteranopia (green-blind)

#0063C6

Tritanopia (blue-blind)

#007C8C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3964c8;
/* rgb */ color: rgb(57, 100, 200);
/* oklch */ color: oklch(52.8% 0.163 264.1);

Tailwind

colors: {
  custom: {
    50: '#818fd9',
    500: '#3964c8',
    950: '#000000',
  },
}

SCSS

$custom: #3964c8;
$custom-light: #818fd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3964c8",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 200
  },
  "hsl": {
    "h": 221.958,
    "s": 56.522,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52785,
    "c": 0.16309,
    "h": 264.1
  },
  "luminance": 0.14154
}

Semantic roles & 50–950 ramp

primary

#3964C8

secondary

#CEBB8F

accent

#B248E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3964C8

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

Preview Lab → · Contrast checker → · Palette generator →