#3F6FC7#3F6FC7

#3F6FC7 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.3% C 0.147 H 261.4°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX#3F6FC7
RGBrgb(63, 111, 199)
HSLhsl(219, 55%, 51%)
HSVhsv(219, 68%, 78%)
CMYKcmyk(68.3%, 44.2%, 0%, 22%)
CIE-LABlab(47.68, 12.84, -50.69)
CIE-LCHlch(47.68, 52.29, 284.21°)
OKLaboklab(55.31% -0.0219 -0.1449)
OKLCHoklch(55.31% 0.147 261.4)
XYZxyz(18.0395, 16.5473, 56.2650)
Luminance0.1655 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F6FC7 #C7973F
analogous
#3FB3C7 #3F6FC7 #533FC7
triadic
#3F6FC7 #C73F6F #6FC73F
tetradic
#3F6FC7 #C73FB3 #C7973F #3FC753
square
#3F6FC7 #C73FB3 #C7973F #3FC753
split-complementary
#3F6FC7 #C7533F #B3C73F
monochromatic
#203B6C #2D549B #3F6FC7 #6E93D5 #9EB6E3

Accessibility & contrast

On white

4.87
#3F6FC7 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.31
#3F6FC7 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6FC7
4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F6FC7#FFFFFF#000000##FFFFFF
##3F6FC71.004.874.314.87
#FFFFFF4.871.0021.001.00
#0000004.3121.001.0021.00
##FFFFFF4.871.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4478CA
Deuteranopia (green-blind)
#2C6BC5
Tritanopia (blue-blind)
#008391
Achromatopsia (no color)
#717171

Design tokens & code

CSS
--color: #3f6fc7;
/* rgb */ color: rgb(63, 111, 199);
/* oklch */ color: oklch(55.3% 0.147 261.4);
Tailwind
colors: {
  custom: {
    50: '#8397d8',
    500: '#3f6fc7',
    950: '#000000',
  },
}
SCSS
$custom: #3f6fc7;
$custom-light: #8397d8;
$custom-dark: #000000;
JSON
{
  "hex": "#3f6fc7",
  "rgb": {
    "r": 63,
    "g": 111,
    "b": 199
  },
  "hsl": {
    "h": 218.824,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.55313,
    "c": 0.14658,
    "h": 261.4
  },
  "luminance": 0.16549
}

Semantic roles & 50–950 ramp

primary
#3F6FC7
secondary
#CFBA93
accent
#AA4ADE
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0D14
muted
#7D7E83

Preview Lab

Preview with #3F6FC7

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

Preview Lab → · Contrast checker → · Palette generator →

#3F6FC7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva