#3F6DC4#3F6DC4

#3F6DC4 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.7% C 0.145 H 261.8°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DC4
RGB	rgb(63, 109, 196)
HSL	hsl(219, 53%, 51%)
HSV	hsv(219, 68%, 77%)
CMYK	cmyk(67.9%, 44.4%, 0%, 23.1%)
CIE-LAB	lab(46.95, 13.02, -50.15)
CIE-LCH	lch(46.95, 51.81, 284.55°)
OKLab	oklab(54.69% -0.0206 -0.1434)
OKLCH	oklch(54.69% 0.145 261.8)
XYZ	xyz(17.4788, 15.9778, 54.3767)
Luminance	0.1598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DC4 #C4963F

analogous

#3FAFC4 #3F6DC4 #533FC4

triadic

#3F6DC4 #C43F6D #6DC43F

tetradic

#3F6DC4 #C43FAF #C4963F #3FC453

square

#3F6DC4 #C43FAF #C4963F #3FC453

split-complementary

#3F6DC4 #C4533F #AFC43F

monochromatic

#203968 #2E5397 #3F6DC4 #6E91D2 #9DB4E1

Accessibility & contrast

On white

5.00

#3F6DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#3F6DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DC4

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DC4	#FFFFFF	#000000	##FFFFFF
##3F6DC4	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4376C7

Deuteranopia (green-blind)

#2B6AC2

Tritanopia (blue-blind)

#00818F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6dc4;
/* rgb */ color: rgb(63, 109, 196);
/* oklch */ color: oklch(54.7% 0.145 261.8);

Tailwind

colors: {
  custom: {
    50: '#8296d6',
    500: '#3f6dc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f6dc4;
$custom-light: #8296d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6dc4",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 196
  },
  "hsl": {
    "h": 219.248,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.54686,
    "c": 0.14484,
    "h": 261.8
  },
  "luminance": 0.1598
}

Semantic roles & 50–950 ramp

primary

#3F6DC4

secondary

#CDB992

accent

#AA4BDC

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6DC4

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

Preview Lab → · Contrast checker → · Palette generator →