#3F6ED4#3F6ED4

#3F6ED4 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.0% C 0.165 H 263.4°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#3F6ED4
RGBrgb(63, 110, 212)
HSLhsl(221, 63%, 54%)
HSVhsv(221, 70%, 83%)
CMYKcmyk(70.3%, 48.1%, 0%, 16.9%)
CIE-LABlab(48.21, 18.16, -57.28)
CIE-LCHlch(48.21, 60.09, 287.59°)
OKLaboklab(55.97% -0.019 -0.1643)
OKLCHoklch(55.97% 0.165 263.4)
XYZxyz(19.5053, 16.9601, 64.5202)
Luminance0.1696 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F6ED4 #D4A53F
analogous
#3FB9D4 #3F6ED4 #5B3FD4
triadic
#3F6ED4 #D43F6E #6ED43F
tetradic
#3F6ED4 #D43FB9 #D4A53F #3FD45B
square
#3F6ED4 #D43FB9 #D4A53F #3FD45B
split-complementary
#3F6ED4 #D45B3F #B9D43F
monochromatic
#1C3A7D #2752AF #3F6ED4 #7194DF #A3BAEA

Accessibility & contrast

On white

4.78
#3F6ED4 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.39
#3F6ED4 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6ED4
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F6ED4#FFFFFF#000000##FFFFFF
##3F6ED41.004.784.394.78
#FFFFFF4.781.0021.001.00
#0000004.3921.001.0021.00
##FFFFFF4.781.0021.001.00

Color blindness preview

Protanopia (red-blind)
#367AD8
Deuteranopia (green-blind)
#086CD2
Tritanopia (blue-blind)
#008697
Achromatopsia (no color)
#727272

Design tokens & code

CSS
--color: #3f6ed4;
/* rgb */ color: rgb(63, 110, 212);
/* oklch */ color: oklch(56.0% 0.165 263.4);
Tailwind
colors: {
  custom: {
    50: '#8597e2',
    500: '#3f6ed4',
    950: '#000000',
  },
}
SCSS
$custom: #3f6ed4;
$custom-light: #8597e2;
$custom-dark: #000000;
JSON
{
  "hex": "#3f6ed4",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 212
  },
  "hsl": {
    "h": 221.074,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.55974,
    "c": 0.16542,
    "h": 263.4
  },
  "luminance": 0.16962
}

Semantic roles & 50–950 ramp

primary
#3F6ED4
secondary
#D7C398
accent
#B241E6
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #3F6ED4

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

Preview Lab → · Contrast checker → · Palette generator →

#3F6ED4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva