#3F6FD2#3F6FD2

#3F6FD2 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.162 H 262.8°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F6FD2
RGB	rgb(63, 111, 210)
HSL	hsl(220, 62%, 54%)
HSV	hsv(220, 70%, 82%)
CMYK	cmyk(70%, 47.1%, 0%, 17.6%)
CIE-LAB	lab(48.36, 16.80, -55.91)
CIE-LCH	lch(48.36, 58.38, 286.73°)
OKLab	oklab(56.05% -0.0201 -0.1603)
OKLCH	oklch(56.05% 0.162 262.8)
XYZ	xyz(19.3631, 17.0768, 63.2360)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6FD2 #D2A23F

analogous

#3FB8D2 #3F6FD2 #583FD2

triadic

#3F6FD2 #D23F6F #6FD23F

tetradic

#3F6FD2 #D23FB8 #D2A23F #3FD258

square

#3F6FD2 #D23FB8 #D2A23F #3FD258

split-complementary

#3F6FD2 #D2583F #B8D23F

monochromatic

#1D3B7A #2853AC #3F6FD2 #7194DE #A2B9E9

Accessibility & contrast

On white

4.76

#3F6FD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3F6FD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6FD2

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6FD2	#FFFFFF	#000000	##FFFFFF
##3F6FD2	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7AD6

Deuteranopia (green-blind)

#166CD0

Tritanopia (blue-blind)

#008696

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f6fd2;
/* rgb */ color: rgb(63, 111, 210);
/* oklch */ color: oklch(56.0% 0.162 262.8);

Tailwind

colors: {
  custom: {
    50: '#8597e0',
    500: '#3f6fd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f6fd2;
$custom-light: #8597e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6fd2",
  "rgb": {
    "r": 63,
    "g": 111,
    "b": 210
  },
  "hsl": {
    "h": 220.408,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56046,
    "c": 0.16152,
    "h": 262.8
  },
  "luminance": 0.17079
}

Semantic roles & 50–950 ramp

primary

#3F6FD2

secondary

#D6C197

accent

#B043E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6FD2

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

Preview Lab → · Contrast checker → · Palette generator →