#3F4DDA#3F4DDA

#3F4DDA is a mid, highly saturated blue. Relative luminance 0.114; OKLCH L 50.2% C 0.213 H 271.7°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX#3F4DDA
RGBrgb(63, 77, 218)
HSLhsl(235, 68%, 55%)
HSVhsv(235, 71%, 85%)
CMYKcmyk(71.1%, 64.7%, 0%, 14.5%)
CIE-LABlab(40.29, 41.04, -73.58)
CIE-LCHlch(40.29, 84.25, 299.15°)
OKLaboklab(50.18% 0.0064 -0.2126)
OKLCHoklch(50.18% 0.213 271.7)
XYZxyz(17.3544, 11.4247, 67.6067)
Luminance0.1143 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F4DDA #DACC3F
analogous
#3F9ADA #3F4DDA #7F3FDA
triadic
#3F4DDA #DA3F4D #4DDA3F
tetradic
#3F4DDA #DA3F9A #DACC3F #3FDA7F
square
#3F4DDA #DA3F9A #DACC3F #3FDA7F
split-complementary
#3F4DDA #DA7F3F #9ADA3F
monochromatic
#1A2385 #2431B8 #3F4DDA #727DE4 #A6ACEE

Accessibility & contrast

On white

6.39
#3F4DDA on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.29
#3F4DDA on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4DDA
6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F4DDA#FFFFFF#000000##FFFFFF
##3F4DDA1.006.393.296.39
#FFFFFF6.391.0021.001.00
#0000003.2921.001.0021.00
##FFFFFF6.391.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0066DE
Deuteranopia (green-blind)
#0058D7
Tritanopia (blue-blind)
#00728D
Achromatopsia (no color)
#5F5F5F

Design tokens & code

CSS
--color: #3f4dda;
/* rgb */ color: rgb(63, 77, 218);
/* oklch */ color: oklch(50.2% 0.213 271.7);
Tailwind
colors: {
  custom: {
    50: '#897fe7',
    500: '#3f4dda',
    950: '#000000',
  },
}
SCSS
$custom: #3f4dda;
$custom-light: #897fe7;
$custom-dark: #000000;
JSON
{
  "hex": "#3f4dda",
  "rgb": {
    "r": 63,
    "g": 77,
    "b": 218
  },
  "hsl": {
    "h": 234.581,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.50179,
    "c": 0.21273,
    "h": 271.7
  },
  "luminance": 0.11426
}

Semantic roles & 50–950 ramp

primary
#3F4DDA
secondary
#DBD59A
accent
#DB3DEB
background
#F9F7FE
surface
#F1EEFD
border
#CBC9D5
text
#0D0A16
muted
#7E7C84

Preview Lab

Preview with #3F4DDA

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

Preview Lab → · Contrast checker → · Palette generator →

#3F4DDA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva