#3F72D2#3F72D2

#3F72D2 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.7% C 0.158 H 261.7°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX#3F72D2
RGBrgb(63, 114, 210)
HSLhsl(219, 62%, 54%)
HSVhsv(219, 70%, 82%)
CMYKcmyk(70%, 45.7%, 0%, 17.6%)
CIE-LABlab(49.18, 14.92, -54.58)
CIE-LCHlch(49.18, 56.58, 285.29°)
OKLaboklab(56.68% -0.0228 -0.1563)
OKLCHoklch(56.68% 0.158 261.7)
XYZxyz(19.6959, 17.7425, 63.3469)
Luminance0.1774 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F72D2 #D29F3F
analogous
#3FBBD2 #3F72D2 #553FD2
triadic
#3F72D2 #D23F72 #72D23F
tetradic
#3F72D2 #D23FBB #D29F3F #3FD255
square
#3F72D2 #D23FBB #D29F3F #3FD255
split-complementary
#3F72D2 #D2553F #BBD23F
monochromatic
#1D3D7A #2856AC #3F72D2 #7196DE #A2BBE9

Accessibility & contrast

On white

4.62
#3F72D2 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.55
#3F72D2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F72D2
4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F72D2#FFFFFF#000000##FFFFFF
##3F72D21.004.624.554.62
#FFFFFF4.621.0021.001.00
#0000004.5521.001.0021.00
##FFFFFF4.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#417CD6
Deuteranopia (green-blind)
#226FD0
Tritanopia (blue-blind)
#008898
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #3f72d2;
/* rgb */ color: rgb(63, 114, 210);
/* oklch */ color: oklch(56.7% 0.158 261.7);
Tailwind
colors: {
  custom: {
    50: '#859ae0',
    500: '#3f72d2',
    950: '#000000',
  },
}
SCSS
$custom: #3f72d2;
$custom-light: #859ae0;
$custom-dark: #000000;
JSON
{
  "hex": "#3f72d2",
  "rgb": {
    "r": 63,
    "g": 114,
    "b": 210
  },
  "hsl": {
    "h": 219.184,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56679,
    "c": 0.15797,
    "h": 261.7
  },
  "luminance": 0.17745
}

Semantic roles & 50–950 ramp

primary
#3F72D2
secondary
#D6C097
accent
#AD43E5
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #3F72D2

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

Preview Lab → · Contrast checker → · Palette generator →

#3F72D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva