#3F44CB#3F44CB

#3F44CB is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.3% C 0.204 H 273.8°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX#3F44CB
RGBrgb(63, 68, 203)
HSLhsl(238, 57%, 52%)
HSVhsv(238, 69%, 80%)
CMYKcmyk(69%, 66.5%, 0%, 20.4%)
CIE-LABlab(36.93, 41.40, -70.43)
CIE-LCHlch(36.93, 81.70, 300.45°)
OKLaboklab(47.34% 0.0136 -0.2035)
OKLCHoklch(47.34% 0.204 273.8)
XYZxyz(14.8929, 9.5014, 57.5374)
Luminance0.0950 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F44CB #CBC63F
analogous
#3F8ACB #3F44CB #803FCB
triadic
#3F44CB #CB3F44 #44CB3F
tetradic
#3F44CB #CB3F8A #CBC63F #3FCB80
square
#3F44CB #CB3F8A #CBC63F #3FCB80
split-complementary
#3F44CB #CB803F #8ACB3F
monochromatic
#1F2271 #2C30A1 #3F44CB #6F73D8 #9FA2E5

Accessibility & contrast

On white

7.24
#3F44CB on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.90
#3F44CB on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44CB
7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F44CB#FFFFFF#000000##FFFFFF
##3F44CB1.007.242.907.24
#FFFFFF7.241.0021.001.00
#0000002.9021.001.0021.00
##FFFFFF7.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005DCF
Deuteranopia (green-blind)
#0050C8
Tritanopia (blue-blind)
#006882
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #3f44cb;
/* rgb */ color: rgb(63, 68, 203);
/* oklch */ color: oklch(47.3% 0.204 273.8);
Tailwind
colors: {
  custom: {
    50: '#8678dc',
    500: '#3f44cb',
    950: '#000000',
  },
}
SCSS
$custom: #3f44cb;
$custom-light: #8678dc;
$custom-dark: #000000;
JSON
{
  "hex": "#3f44cb",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 203
  },
  "hsl": {
    "h": 237.857,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.47335,
    "c": 0.20391,
    "h": 273.8
  },
  "luminance": 0.09503
}

Semantic roles & 50–950 ramp

primary
#3F44CB
secondary
#D1CF94
accent
#DB47E1
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0915
muted
#7E7B83

Preview Lab

Preview with #3F44CB

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

Preview Lab → · Contrast checker → · Palette generator →

#3F44CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva