#3F41D0#3F41D0

#3F41D0 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.3% C 0.213 H 274.0°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX#3F41D0
RGBrgb(63, 65, 208)
HSLhsl(239, 61%, 53%)
HSVhsv(239, 70%, 82%)
CMYKcmyk(69.7%, 68.8%, 0%, 18.4%)
CIE-LABlab(36.72, 44.86, -73.67)
CIE-LCHlch(36.72, 86.25, 301.34°)
OKLaboklab(47.32% 0.0149 -0.2129)
OKLCHoklch(47.32% 0.213 274)
XYZxyz(15.3216, 9.3900, 60.6673)
Luminance0.0939 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F41D0 #D0CE3F
analogous
#3F8AD0 #3F41D0 #853FD0
triadic
#3F41D0 #D03F41 #41D03F
tetradic
#3F41D0 #D03F8A #D0CE3F #3FD085
square
#3F41D0 #D03F8A #D0CE3F #3FD085
split-complementary
#3F41D0 #D0853F #8AD03F
monochromatic
#1D1E77 #292BA9 #3F41D0 #7072DC #A1A2E8

Accessibility & contrast

On white

7.30
#3F41D0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.88
#3F41D0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F41D0
7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F41D0#FFFFFF#000000##FFFFFF
##3F41D01.007.302.887.30
#FFFFFF7.301.0021.001.00
#0000002.8821.001.0021.00
##FFFFFF7.301.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005DD4
Deuteranopia (green-blind)
#0050CD
Tritanopia (blue-blind)
#006883
Achromatopsia (no color)
#565656

Design tokens & code

CSS
--color: #3f41d0;
/* rgb */ color: rgb(63, 65, 208);
/* oklch */ color: oklch(47.3% 0.213 274.0);
Tailwind
colors: {
  custom: {
    50: '#8876e0',
    500: '#3f41d0',
    950: '#000000',
  },
}
SCSS
$custom: #3f41d0;
$custom-light: #8876e0;
$custom-dark: #000000;
JSON
{
  "hex": "#3f41d0",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 208
  },
  "hsl": {
    "h": 239.172,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47322,
    "c": 0.21345,
    "h": 274
  },
  "luminance": 0.09391
}

Semantic roles & 50–950 ramp

primary
#3F41D0
secondary
#D5D496
accent
#E244E4
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #3F41D0

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

Preview Lab → · Contrast checker → · Palette generator →

#3F41D0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva