#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
RGBrgb(57, 100, 206)
HSLhsl(223, 60%, 52%)
HSVhsv(223, 72%, 81%)
CMYKcmyk(72.3%, 51.5%, 0%, 19.2%)
CIE-LABlab(44.86, 21.50, -59.27)
CIE-LCHlch(44.86, 63.05, 289.93°)
OKLaboklab(53.22% -0.0161 -0.1705)
OKLCHoklch(53.22% 0.171 264.6)
XYZxyz(17.3812, 14.4386, 60.2515)
Luminance0.1444 (WCAG relative)
Temperaturecool
Familyblue

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
##3964CE1.005.403.895.40
#FFFFFF5.401.0021.001.00
#0000003.8921.001.0021.00
##FFFFFF5.401.0021.001.00

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 →

#3964CE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva