#3F4AD9#3F4AD9

#3F4AD9 is a mid, highly saturated blue. Relative luminance 0.110; OKLCH L 49.6% C 0.215 H 272.2°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX#3F4AD9
RGBrgb(63, 74, 217)
HSLhsl(236, 67%, 55%)
HSVhsv(236, 71%, 85%)
CMYKcmyk(71%, 65.9%, 0%, 14.9%)
CIE-LABlab(39.52, 42.52, -74.27)
CIE-LCHlch(39.52, 85.58, 299.79°)
OKLaboklab(49.59% 0.0084 -0.2147)
OKLCHoklch(49.59% 0.215 272.2)
XYZxyz(17.0188, 10.9624, 66.8512)
Luminance0.1096 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F4AD9 #D9CE3F
analogous
#3F97D9 #3F4AD9 #813FD9
triadic
#3F4AD9 #D93F4A #4AD93F
tetradic
#3F4AD9 #D93F97 #D9CE3F #3FD981
square
#3F4AD9 #D93F97 #D9CE3F #3FD981
split-complementary
#3F4AD9 #D9813F #97D93F
monochromatic
#1A2284 #242FB7 #3F4AD9 #727AE3 #A5AAED

Accessibility & contrast

On white

6.58
#3F4AD9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.19
#3F4AD9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4AD9
6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F4AD9#FFFFFF#000000##FFFFFF
##3F4AD91.006.583.196.58
#FFFFFF6.581.0021.001.00
#0000003.1921.001.0021.00
##FFFFFF6.581.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0064DD
Deuteranopia (green-blind)
#0056D6
Tritanopia (blue-blind)
#00708B
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #3f4ad9;
/* rgb */ color: rgb(63, 74, 217);
/* oklch */ color: oklch(49.6% 0.215 272.2);
Tailwind
colors: {
  custom: {
    50: '#897de6',
    500: '#3f4ad9',
    950: '#000000',
  },
}
SCSS
$custom: #3f4ad9;
$custom-light: #897de6;
$custom-dark: #000000;
JSON
{
  "hex": "#3f4ad9",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 217
  },
  "hsl": {
    "h": 235.714,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.49592,
    "c": 0.21482,
    "h": 272.2
  },
  "luminance": 0.10964
}

Semantic roles & 50–950 ramp

primary
#3F4AD9
secondary
#DAD69A
accent
#DE3EEA
background
#F9F7FE
surface
#F1EEFC
border
#CBC9D5
text
#0D0916
muted
#7E7B84

Preview Lab

Preview with #3F4AD9

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

Preview Lab → · Contrast checker → · Palette generator →

#3F4AD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva