#3F44D9#3F44D9

#3F44D9 is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.6% C 0.221 H 273.1°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX#3F44D9
RGBrgb(63, 68, 217)
HSLhsl(238, 67%, 55%)
HSVhsv(238, 71%, 85%)
CMYKcmyk(71%, 68.7%, 0%, 14.9%)
CIE-LABlab(38.20, 46.08, -76.43)
CIE-LCHlch(38.20, 89.25, 301.09°)
OKLaboklab(48.64% 0.012 -0.221)
OKLCHoklch(48.64% 0.221 273.1)
XYZxyz(16.6372, 10.1991, 66.7240)
Luminance0.1020 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F44D9 #D9D43F
analogous
#3F91D9 #3F44D9 #873FD9
triadic
#3F44D9 #D93F44 #44D93F
tetradic
#3F44D9 #D93F91 #D9D43F #3FD987
square
#3F44D9 #D93F91 #D9D43F #3FD987
split-complementary
#3F44D9 #D9873F #91D93F
monochromatic
#1A1D84 #2429B7 #3F44D9 #7276E3 #A5A8ED

Accessibility & contrast

On white

6.91
#3F44D9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.04
#3F44D9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F44D9
6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F44D9#FFFFFF#000000##FFFFFF
##3F44D91.006.913.046.91
#FFFFFF6.911.0021.001.00
#0000003.0421.001.0021.00
##FFFFFF6.911.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0061DE
Deuteranopia (green-blind)
#0053D6
Tritanopia (blue-blind)
#006D89
Achromatopsia (no color)
#5A5A5A

Design tokens & code

CSS
--color: #3f44d9;
/* rgb */ color: rgb(63, 68, 217);
/* oklch */ color: oklch(48.6% 0.221 273.1);
Tailwind
colors: {
  custom: {
    50: '#8979e6',
    500: '#3f44d9',
    950: '#000000',
  },
}
SCSS
$custom: #3f44d9;
$custom-light: #8979e6;
$custom-dark: #000000;
JSON
{
  "hex": "#3f44d9",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 217
  },
  "hsl": {
    "h": 238.052,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.48636,
    "c": 0.22134,
    "h": 273.1
  },
  "luminance": 0.10201
}

Semantic roles & 50–950 ramp

primary
#3F44D9
secondary
#DAD89A
accent
#E43EEA
background
#F9F7FE
surface
#F2EDFD
border
#CCC8D5
text
#0D0916
muted
#7E7B84

Preview Lab

Preview with #3F44D9

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

Preview Lab → · Contrast checker → · Palette generator →

#3F44D9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva