#3F48CC#3F48CC

#3F48CC is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.1% C 0.201 H 273.1°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX#3F48CC
RGBrgb(63, 72, 204)
HSLhsl(236, 58%, 52%)
HSVhsv(236, 69%, 80%)
CMYKcmyk(69.1%, 64.7%, 0%, 20%)
CIE-LABlab(37.93, 39.31, -69.37)
CIE-LCHlch(37.93, 79.74, 299.54°)
OKLaboklab(48.09% 0.0108 -0.2003)
OKLCHoklch(48.09% 0.201 273.1)
XYZxyz(15.2627, 10.0497, 58.2505)
Luminance0.1005 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F48CC #CCC33F
analogous
#3F8FCC #3F48CC #7C3FCC
triadic
#3F48CC #CC3F48 #48CC3F
tetradic
#3F48CC #CC3F8F #CCC33F #3FCC7C
square
#3F48CC #CC3F8F #CCC33F #3FCC7C
split-complementary
#3F48CC #CC7C3F #8FCC3F
monochromatic
#1E2472 #2B33A3 #3F48CC #6F76D9 #A0A4E6

Accessibility & contrast

On white

6.98
#3F48CC on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.01
#3F48CC on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F48CC
6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F48CC#FFFFFF#000000##FFFFFF
##3F48CC1.006.983.016.98
#FFFFFF6.981.0021.001.00
#0000003.0121.001.0021.00
##FFFFFF6.981.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0060D0
Deuteranopia (green-blind)
#0053C9
Tritanopia (blue-blind)
#006A83
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #3f48cc;
/* rgb */ color: rgb(63, 72, 204);
/* oklch */ color: oklch(48.1% 0.201 273.1);
Tailwind
colors: {
  custom: {
    50: '#867bdd',
    500: '#3f48cc',
    950: '#000000',
  },
}
SCSS
$custom: #3f48cc;
$custom-light: #867bdd;
$custom-dark: #000000;
JSON
{
  "hex": "#3f48cc",
  "rgb": {
    "r": 63,
    "g": 72,
    "b": 204
  },
  "hsl": {
    "h": 236.17,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.48089,
    "c": 0.20063,
    "h": 273.1
  },
  "luminance": 0.10051
}

Semantic roles & 50–950 ramp

primary
#3F48CC
secondary
#D2CE95
accent
#D747E1
background
#F9F7FD
surface
#F1EEFB
border
#CBC9D4
text
#0D0915
muted
#7E7B83

Preview Lab

Preview with #3F48CC

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

Preview Lab → · Contrast checker → · Palette generator →

#3F48CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva