#3F6AD3#3F6AD3

#3F6AD3 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.1% C 0.169 H 264.7°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3F6AD3
RGB	rgb(63, 106, 211)
HSL	hsl(223, 63%, 54%)
HSV	hsv(223, 70%, 83%)
CMYK	cmyk(70.1%, 49.8%, 0%, 17.3%)
CIE-LAB	lab(47.06, 20.32, -58.56)
CIE-LCH	lch(47.06, 61.99, 289.14°)
OKLab	oklab(55.08% -0.0157 -0.1682)
OKLCH	oklch(55.08% 0.169 264.7)
XYZ	xyz(18.9577, 16.0660, 63.7173)
Luminance	0.1607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6AD3 #D3A83F

analogous

#3FB4D3 #3F6AD3 #5E3FD3

triadic

#3F6AD3 #D33F6A #6AD33F

tetradic

#3F6AD3 #D33FB4 #D3A83F #3FD35E

square

#3F6AD3 #D33FB4 #D3A83F #3FD35E

split-complementary

#3F6AD3 #D35E3F #B4D33F

monochromatic

#1C387B #284EAD #3F6AD3 #7191DE #A3B7EA

Accessibility & contrast

On white

4.98

#3F6AD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#3F6AD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6AD3

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6AD3	#FFFFFF	#000000	##FFFFFF
##3F6AD3	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D77D7

Deuteranopia (green-blind)

#0069D1

Tritanopia (blue-blind)

#008394

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f6ad3;
/* rgb */ color: rgb(63, 106, 211);
/* oklch */ color: oklch(55.1% 0.169 264.7);

Tailwind

colors: {
  custom: {
    50: '#8594e1',
    500: '#3f6ad3',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ad3;
$custom-light: #8594e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ad3",
  "rgb": {
    "r": 63,
    "g": 106,
    "b": 211
  },
  "hsl": {
    "h": 222.568,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55076,
    "c": 0.16889,
    "h": 264.7
  },
  "luminance": 0.16068
}

Semantic roles & 50–950 ramp

primary

#3F6AD3

secondary

#D7C497

accent

#B642E6

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6AD3

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

Preview Lab → · Contrast checker → · Palette generator →