#3964BA#3964BA

#3964BA is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.8% C 0.144 H 262.5°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX#3964BA
RGBrgb(57, 100, 186)
HSLhsl(220, 53%, 48%)
HSVhsv(220, 69%, 73%)
CMYKcmyk(69.4%, 46.2%, 0%, 27.1%)
CIE-LABlab(43.55, 14.15, -49.82)
CIE-LCHlch(43.55, 51.79, 285.86°)
OKLaboklab(51.81% -0.0187 -0.1426)
OKLCHoklch(51.81% 0.144 262.5)
XYZxyz(15.1043, 13.5278, 48.2600)
Luminance0.1353 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3964BA #BA8F39
analogous
#39A4BA #3964BA #4F39BA
triadic
#3964BA #BA3964 #64BA39
tetradic
#3964BA #BA39A4 #BA8F39 #39BA4F
square
#3964BA #BA39A4 #BA8F39 #39BA4F
split-complementary
#3964BA #BA4F39 #A4BA39
monochromatic
#1C325C #2B4B8B #3964BA #6186CF #90AADD

Accessibility & contrast

On white

5.67
#3964BA on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.71
#3964BA on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964BA
5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3964BA#FFFFFF#000000##FFFFFF
##3964BA1.005.673.715.67
#FFFFFF5.671.0021.001.00
#0000003.7121.001.0021.00
##FFFFFF5.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#386DBD
Deuteranopia (green-blind)
#1E61B8
Tritanopia (blue-blind)
#007886
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #3964ba;
/* rgb */ color: rgb(57, 100, 186);
/* oklch */ color: oklch(51.8% 0.144 262.5);
Tailwind
colors: {
  custom: {
    50: '#7e8fcf',
    500: '#3964ba',
    950: '#000000',
  },
}
SCSS
$custom: #3964ba;
$custom-light: #7e8fcf;
$custom-dark: #000000;
JSON
{
  "hex": "#3964ba",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 186
  },
  "hsl": {
    "h": 220,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.51805,
    "c": 0.14388,
    "h": 262.5
  },
  "luminance": 0.13529
}

Semantic roles & 50–950 ramp

primary
#3964BA
secondary
#C8B287
accent
#AC4BDC
background
#F8F8FC
surface
#EFF0F9
border
#CACBD2
text
#0B0C14
muted
#7C7D82

Preview Lab

Preview with #3964BA

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

Preview Lab → · Contrast checker → · Palette generator →

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