#3F6CD2#3F6CD2

#3F6CD2 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.165 H 263.9°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CD2
RGB	rgb(63, 108, 210)
HSL	hsl(222, 62%, 54%)
HSV	hsv(222, 70%, 82%)
CMYK	cmyk(70%, 48.6%, 0%, 17.6%)
CIE-LAB	lab(47.54, 18.70, -57.22)
CIE-LCH	lch(47.54, 60.20, 288.09°)
OKLab	oklab(55.42% -0.0175 -0.1642)
OKLCH	oklch(55.42% 0.165 263.9)
XYZ	xyz(19.0412, 16.4331, 63.1287)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CD2 #D2A53F

analogous

#3FB5D2 #3F6CD2 #5B3FD2

triadic

#3F6CD2 #D23F6C #6CD23F

tetradic

#3F6CD2 #D23FB5 #D2A53F #3FD25B

square

#3F6CD2 #D23FB5 #D2A53F #3FD25B

split-complementary

#3F6CD2 #D25B3F #B5D23F

monochromatic

#1D397A #2850AC #3F6CD2 #7192DE #A2B8E9

Accessibility & contrast

On white

4.90

#3F6CD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3F6CD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CD2

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CD2	#FFFFFF	#000000	##FFFFFF
##3F6CD2	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3378D6

Deuteranopia (green-blind)

#016AD0

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6cd2;
/* rgb */ color: rgb(63, 108, 210);
/* oklch */ color: oklch(55.4% 0.165 263.9);

Tailwind

colors: {
  custom: {
    50: '#8595e0',
    500: '#3f6cd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cd2;
$custom-light: #8595e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cd2",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 210
  },
  "hsl": {
    "h": 221.633,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.55419,
    "c": 0.16512,
    "h": 263.9
  },
  "luminance": 0.16435
}

Semantic roles & 50–950 ramp

primary

#3F6CD2

secondary

#D6C397

accent

#B343E5

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6CD2

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

Preview Lab → · Contrast checker → · Palette generator →