#3F6DD2#3F6DD2

#3F6DD2 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.164 H 263.6°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DD2
RGB	rgb(63, 109, 210)
HSL	hsl(221, 62%, 54%)
HSV	hsv(221, 70%, 82%)
CMYK	cmyk(70%, 48.1%, 0%, 17.6%)
CIE-LAB	lab(47.81, 18.06, -56.78)
CIE-LCH	lch(47.81, 59.59, 287.65°)
OKLab	oklab(55.63% -0.0184 -0.1629)
OKLCH	oklch(55.63% 0.164 263.6)
XYZ	xyz(19.1473, 16.6452, 63.1640)
Luminance	0.1665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DD2 #D2A43F

analogous

#3FB7D2 #3F6DD2 #5A3FD2

triadic

#3F6DD2 #D23F6D #6DD23F

tetradic

#3F6DD2 #D23FB7 #D2A43F #3FD25A

square

#3F6DD2 #D23FB7 #D2A43F #3FD25A

split-complementary

#3F6DD2 #D25A3F #B7D23F

monochromatic

#1D3A7A #2851AC #3F6DD2 #7193DE #A2B8E9

Accessibility & contrast

On white

4.85

#3F6DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3F6DD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DD2

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DD2	#FFFFFF	#000000	##FFFFFF
##3F6DD2	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3679D6

Deuteranopia (green-blind)

#0A6BD0

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6dd2;
/* rgb */ color: rgb(63, 109, 210);
/* oklch */ color: oklch(55.6% 0.164 263.6);

Tailwind

colors: {
  custom: {
    50: '#8596e0',
    500: '#3f6dd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f6dd2;
$custom-light: #8596e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6dd2",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 210
  },
  "hsl": {
    "h": 221.224,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.55627,
    "c": 0.16391,
    "h": 263.6
  },
  "luminance": 0.16647
}

Semantic roles & 50–950 ramp

primary

#3F6DD2

secondary

#D6C297

accent

#B243E5

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6DD2

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

Preview Lab → · Contrast checker → · Palette generator →