#3F74D2#3F74D2

#3F74D2 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.1% C 0.156 H 260.9°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX#3F74D2
RGBrgb(63, 116, 210)
HSLhsl(218, 62%, 54%)
HSVhsv(218, 70%, 82%)
CMYKcmyk(70%, 44.8%, 0%, 17.6%)
CIE-LABlab(49.74, 13.67, -53.69)
CIE-LCHlch(49.74, 55.40, 284.29°)
OKLaboklab(57.11% -0.0246 -0.1537)
OKLCHoklch(57.11% 0.156 260.9)
XYZxyz(19.9240, 18.1986, 63.4229)
Luminance0.1820 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F74D2 #D29D3F
analogous
#3FBDD2 #3F74D2 #533FD2
triadic
#3F74D2 #D23F74 #74D23F
tetradic
#3F74D2 #D23FBD #D29D3F #3FD253
square
#3F74D2 #D23FBD #D29D3F #3FD253
split-complementary
#3F74D2 #D2533F #BDD23F
monochromatic
#1D3E7A #2858AC #3F74D2 #7198DE #A2BCE9

Accessibility & contrast

On white

4.53
#3F74D2 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.64
#3F74D2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F74D2
4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F74D2#FFFFFF#000000##000000
##3F74D21.004.534.644.64
#FFFFFF4.531.0021.0021.00
#0000004.6421.001.001.00
##0000004.6421.001.001.00

Color blindness preview

Protanopia (red-blind)
#457ED6
Deuteranopia (green-blind)
#2870D0
Tritanopia (blue-blind)
#008A99
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #3f74d2;
/* rgb */ color: rgb(63, 116, 210);
/* oklch */ color: oklch(57.1% 0.156 260.9);
Tailwind
colors: {
  custom: {
    50: '#859be0',
    500: '#3f74d2',
    950: '#000000',
  },
}
SCSS
$custom: #3f74d2;
$custom-light: #859be0;
$custom-dark: #000000;
JSON
{
  "hex": "#3f74d2",
  "rgb": {
    "r": 63,
    "g": 116,
    "b": 210
  },
  "hsl": {
    "h": 218.367,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.57106,
    "c": 0.15563,
    "h": 260.9
  },
  "luminance": 0.18201
}

Semantic roles & 50–950 ramp

primary
#3F74D2
secondary
#D6BF97
accent
#AB43E5
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3F74D2

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

Preview Lab → · Contrast checker → · Palette generator →

#3F74D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva