#3F6FDE#3F6FDE

#3F6FDE is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.9% C 0.178 H 264.0°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX#3F6FDE
RGBrgb(63, 111, 222)
HSLhsl(222, 71%, 56%)
HSVhsv(222, 72%, 87%)
CMYKcmyk(71.6%, 50%, 0%, 12.9%)
CIE-LABlab(49.13, 21.14, -61.47)
CIE-LCHlch(49.13, 65.01, 288.98°)
OKLaboklab(56.88% -0.0186 -0.1766)
OKLCHoklch(56.88% 0.178 264)
XYZxyz(20.9145, 17.6973, 71.4068)
Luminance0.1770 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F6FDE #DEAE3F
analogous
#3FBEDE #3F6FDE #5E3FDE
triadic
#3F6FDE #DE3F6F #6FDE3F
tetradic
#3F6FDE #DE3FBE #DEAE3F #3FDE5E
square
#3F6FDE #DE3FBE #DEAE3F #3FDE5E
split-complementary
#3F6FDE #DE5E3F #BEDE3F
monochromatic
#183B8B #2151BF #3F6FDE #7396E7 #A7BDF0

Accessibility & contrast

On white

4.63
#3F6FDE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.54
#3F6FDE on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6FDE
4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F6FDE#FFFFFF#000000##FFFFFF
##3F6FDE1.004.634.544.63
#FFFFFF4.631.0021.001.00
#0000004.5421.001.0021.00
##FFFFFF4.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2C7CE2
Deuteranopia (green-blind)
#006EDC
Tritanopia (blue-blind)
#00899C
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #3f6fde;
/* rgb */ color: rgb(63, 111, 222);
/* oklch */ color: oklch(56.9% 0.178 264.0);
Tailwind
colors: {
  custom: {
    50: '#8797e9',
    500: '#3f6fde',
    950: '#000000',
  },
}
SCSS
$custom: #3f6fde;
$custom-light: #8797e9;
$custom-dark: #000000;
JSON
{
  "hex": "#3f6fde",
  "rgb": {
    "r": 63,
    "g": 111,
    "b": 222
  },
  "hsl": {
    "h": 221.887,
    "s": 70.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.56881,
    "c": 0.17762,
    "h": 264
  },
  "luminance": 0.177
}

Semantic roles & 50–950 ramp

primary
#3F6FDE
secondary
#DDC99B
accent
#B73AED
background
#F9F9FE
surface
#F1F2FD
border
#CBCCD5
text
#0D0D16
muted
#7E7E84

Preview Lab

Preview with #3F6FDE

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

Preview Lab → · Contrast checker → · Palette generator →

#3F6FDE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva