#3F44D1#3F44D1

#3F44D1 is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 47.9% C 0.211 H 273.5°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX#3F44D1
RGBrgb(63, 68, 209)
HSLhsl(238, 61%, 53%)
HSVhsv(238, 70%, 82%)
CMYKcmyk(69.9%, 67.5%, 0%, 18%)
CIE-LABlab(37.47, 43.42, -73.03)
CIE-LCHlch(37.47, 84.96, 300.73°)
OKLaboklab(47.89% 0.013 -0.211)
OKLCHoklch(47.89% 0.211 273.5)
XYZxyz(15.6218, 9.7929, 61.3762)
Luminance0.0979 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F44D1 #D1CC3F
analogous
#3F8DD1 #3F44D1 #833FD1
triadic
#3F44D1 #D13F44 #44D13F
tetradic
#3F44D1 #D13F8D #D1CC3F #3FD183
square
#3F44D1 #D13F8D #D1CC3F #3FD183
split-complementary
#3F44D1 #D1833F #8DD13F
monochromatic
#1D2079 #292DAA #3F44D1 #7074DD #A2A4E9

Accessibility & contrast

On white

7.10
#3F44D1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.96
#3F44D1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44D1
7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F44D1#FFFFFF#000000##FFFFFF
##3F44D11.007.102.967.10
#FFFFFF7.101.0021.001.00
#0000002.9621.001.0021.00
##FFFFFF7.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005FD5
Deuteranopia (green-blind)
#0051CE
Tritanopia (blue-blind)
#006A85
Achromatopsia (no color)
#585858

Design tokens & code

CSS
--color: #3f44d1;
/* rgb */ color: rgb(63, 68, 209);
/* oklch */ color: oklch(47.9% 0.211 273.5);
Tailwind
colors: {
  custom: {
    50: '#8878e0',
    500: '#3f44d1',
    950: '#000000',
  },
}
SCSS
$custom: #3f44d1;
$custom-light: #8878e0;
$custom-dark: #000000;
JSON
{
  "hex": "#3f44d1",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 209
  },
  "hsl": {
    "h": 237.945,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.47887,
    "c": 0.21145,
    "h": 273.5
  },
  "luminance": 0.09794
}

Semantic roles & 50–950 ramp

primary
#3F44D1
secondary
#D5D397
accent
#DF43E4
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0915
muted
#7E7B83

Preview Lab

Preview with #3F44D1

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

Preview Lab → · Contrast checker → · Palette generator →

#3F44D1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva