#3F44C1#3F44C1

#3F44C1 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.4% C 0.191 H 274.3°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX#3F44C1
RGBrgb(63, 68, 193)
HSLhsl(238, 51%, 50%)
HSVhsv(238, 67%, 76%)
CMYKcmyk(67.4%, 64.8%, 0%, 24.3%)
CIE-LABlab(36.06, 38.01, -66.03)
CIE-LCHlch(36.06, 76.19, 299.93°)
OKLaboklab(46.43% 0.0145 -0.1906)
OKLCHoklch(46.43% 0.191 274.3)
XYZxyz(13.7395, 9.0400, 51.4626)
Luminance0.0904 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F44C1 #C1BC3F
analogous
#3F85C1 #3F44C1 #7B3FC1
triadic
#3F44C1 #C13F44 #44C13F
tetradic
#3F44C1 #C13F85 #C1BC3F #3FC17B
square
#3F44C1 #C13F85 #C1BC3F #3FC17B
split-complementary
#3F44C1 #C17B3F #85C13F
monochromatic
#212365 #303393 #3F44C1 #6D71D0 #9C9EDF

Accessibility & contrast

On white

7.48
#3F44C1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.81
#3F44C1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44C1
7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F44C1#FFFFFF#000000##FFFFFF
##3F44C11.007.482.817.48
#FFFFFF7.481.0021.001.00
#0000002.8121.001.0021.00
##FFFFFF7.481.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005BC5
Deuteranopia (green-blind)
#004FBF
Tritanopia (blue-blind)
#00647C
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #3f44c1;
/* rgb */ color: rgb(63, 68, 193);
/* oklch */ color: oklch(46.4% 0.191 274.3);
Tailwind
colors: {
  custom: {
    50: '#8478d5',
    500: '#3f44c1',
    950: '#000000',
  },
}
SCSS
$custom: #3f44c1;
$custom-light: #8478d5;
$custom-dark: #000000;
JSON
{
  "hex": "#3f44c1",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 193
  },
  "hsl": {
    "h": 237.692,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.46433,
    "c": 0.19112,
    "h": 274.3
  },
  "luminance": 0.09041
}

Semantic roles & 50–950 ramp

primary
#3F44C1
secondary
#CBC991
accent
#D54DDB
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0914
muted
#7D7B83

Preview Lab

Preview with #3F44C1

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

Preview Lab → · Contrast checker → · Palette generator →

#3F44C1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva