#3F6DCE#3F6DCE

#3F6DCE is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.4% C 0.159 H 263.1°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX#3F6DCE
RGBrgb(63, 109, 206)
HSLhsl(221, 59%, 53%)
HSVhsv(221, 69%, 81%)
CMYKcmyk(69.4%, 47.1%, 0%, 19.2%)
CIE-LABlab(47.56, 16.62, -54.91)
CIE-LCHlch(47.56, 57.37, 286.84°)
OKLaboklab(55.35% -0.019 -0.1574)
OKLCHoklch(55.35% 0.159 263.1)
XYZxyz(18.6552, 16.4484, 60.5723)
Luminance0.1645 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F6DCE #CEA03F
analogous
#3FB5CE #3F6DCE #583FCE
triadic
#3F6DCE #CE3F6D #6DCE3F
tetradic
#3F6DCE #CE3FB5 #CEA03F #3FCE58
square
#3F6DCE #CE3FB5 #CEA03F #3FCE58
split-complementary
#3F6DCE #CE583F #B5CE3F
monochromatic
#1E3A75 #2A52A6 #3F6DCE #7092DA #A1B7E7

Accessibility & contrast

On white

4.90
#3F6DCE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.29
#3F6DCE on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DCE
4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F6DCE#FFFFFF#000000##FFFFFF
##3F6DCE1.004.904.294.90
#FFFFFF4.901.0021.001.00
#0000004.2921.001.0021.00
##FFFFFF4.901.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3A78D2
Deuteranopia (green-blind)
#186BCC
Tritanopia (blue-blind)
#008493
Achromatopsia (no color)
#717171

Design tokens & code

CSS
--color: #3f6dce;
/* rgb */ color: rgb(63, 109, 206);
/* oklch */ color: oklch(55.4% 0.159 263.1);
Tailwind
colors: {
  custom: {
    50: '#8496dd',
    500: '#3f6dce',
    950: '#000000',
  },
}
SCSS
$custom: #3f6dce;
$custom-light: #8496dd;
$custom-dark: #000000;
JSON
{
  "hex": "#3f6dce",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 206
  },
  "hsl": {
    "h": 220.699,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.55353,
    "c": 0.1585,
    "h": 263.1
  },
  "luminance": 0.1645
}

Semantic roles & 50–950 ramp

primary
#3F6DCE
secondary
#D3BF95
accent
#B045E3
background
#F8F9FD
surface
#F0F1FB
border
#CBCBD4
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #3F6DCE

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

Preview Lab → · Contrast checker → · Palette generator →

#3F6DCE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva