#3728DE#3728DE

#3728DE is a mid, highly saturated blue. Relative luminance 0.076; OKLCH L 45.1% C 0.254 H 273.0°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX#3728DE
RGBrgb(55, 40, 222)
HSLhsl(245, 73%, 51%)
HSVhsv(245, 82%, 87%)
CMYKcmyk(75.2%, 82%, 0%, 12.9%)
CIE-LABlab(33.14, 61.45, -87.68)
CIE-LCHlch(33.14, 107.07, 305.02°)
OKLaboklab(45.09% 0.0134 -0.2536)
OKLCHoklch(45.09% 0.254 273)
XYZxyz(15.5148, 7.6021, 69.7428)
Luminance0.0760 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3728DE #CFDE28
analogous
#2874DE #3728DE #9228DE
triadic
#3728DE #DE3728 #28DE37
tetradic
#3728DE #DE2874 #CFDE28 #28DE92
square
#3728DE #DE2874 #CFDE28 #28DE92
split-complementary
#3728DE #DE9228 #74DE28
monochromatic
#1B1379 #271BAE #3728DE #685DE6 #9A92EE

Accessibility & contrast

On white

8.33
#3728DE on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.52
#3728DE on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3728DE
8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3728DE#FFFFFF#000000##FFFFFF
##3728DE1.008.332.528.33
#FFFFFF8.331.0021.001.00
#0000002.5221.001.0021.00
##FFFFFF8.331.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0056E3
Deuteranopia (green-blind)
#0045DB
Tritanopia (blue-blind)
#006386
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #3728de;
/* rgb */ color: rgb(55, 40, 222);
/* oklch */ color: oklch(45.1% 0.254 273.0);
Tailwind
colors: {
  custom: {
    50: '#8a68ea',
    500: '#3728de',
    950: '#000000',
  },
}
SCSS
$custom: #3728de;
$custom-light: #8a68ea;
$custom-dark: #000000;
JSON
{
  "hex": "#3728de",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 222
  },
  "hsl": {
    "h": 244.945,
    "s": 73.387,
    "l": 51.373
  },
  "oklch": {
    "l": 0.4509,
    "c": 0.25396,
    "h": 273
  },
  "luminance": 0.07604
}

Semantic roles & 50–950 ramp

primary
#3728DE
secondary
#D2D989
accent
#F038E1
background
#F9F6FE
surface
#F2EBFD
border
#CCC6D5
text
#0E0716
muted
#7E7A84

Preview Lab

Preview with #3728DE

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

Preview Lab → · Contrast checker → · Palette generator →

#3728DE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva