#3964B8#3964B8

#3964B8 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.7% C 0.141 H 262.2°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX#3964B8
RGBrgb(57, 100, 184)
HSLhsl(220, 53%, 47%)
HSVhsv(220, 69%, 72%)
CMYKcmyk(69%, 45.7%, 0%, 27.8%)
CIE-LABlab(43.42, 13.42, -48.85)
CIE-LCHlch(43.42, 50.66, 285.36°)
OKLaboklab(51.67% -0.0191 -0.1398)
OKLCHoklch(51.67% 0.141 262.2)
XYZxyz(14.8932, 13.4434, 47.1481)
Luminance0.1344 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3964B8 #B88D39
analogous
#39A4B8 #3964B8 #4E39B8
triadic
#3964B8 #B83964 #64B839
tetradic
#3964B8 #B839A4 #B88D39 #39B84E
square
#3964B8 #B839A4 #B88D39 #39B84E
split-complementary
#3964B8 #B84E39 #A4B839
monochromatic
#1C315B #2B4B89 #3964B8 #6085CE #8FA9DC

Accessibility & contrast

On white

5.69
#3964B8 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.69
#3964B8 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964B8
5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3964B8#FFFFFF#000000##FFFFFF
##3964B81.005.693.695.69
#FFFFFF5.691.0021.001.00
#0000003.6921.001.0021.00
##FFFFFF5.691.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3A6DBB
Deuteranopia (green-blind)
#2161B6
Tritanopia (blue-blind)
#007885
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #3964b8;
/* rgb */ color: rgb(57, 100, 184);
/* oklch */ color: oklch(51.7% 0.141 262.2);
Tailwind
colors: {
  custom: {
    50: '#7e8fce',
    500: '#3964b8',
    950: '#000000',
  },
}
SCSS
$custom: #3964b8;
$custom-light: #7e8fce;
$custom-dark: #000000;
JSON
{
  "hex": "#3964b8",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 184
  },
  "hsl": {
    "h": 219.685,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.51669,
    "c": 0.14111,
    "h": 262.2
  },
  "luminance": 0.13445
}

Semantic roles & 50–950 ramp

primary
#3964B8
secondary
#C7B186
accent
#AB4CDC
background
#F8F8FC
surface
#EFF0F9
border
#CACBD2
text
#0B0C13
muted
#7C7D82

Preview Lab

Preview with #3964B8

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

Preview Lab → · Contrast checker → · Palette generator →

#3964B8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva