#3F6BCD#3F6BCD

#3F6BCD is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.9% C 0.160 H 263.8°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BCD
RGB	rgb(63, 107, 205)
HSL	hsl(221, 59%, 53%)
HSV	hsv(221, 69%, 80%)
CMYK	cmyk(69.3%, 47.8%, 0%, 19.6%)
CIE-LAB	lab(46.95, 17.52, -55.32)
CIE-LCH	lch(46.95, 58.03, 287.58°)
OKLab	oklab(54.86% -0.0173 -0.1586)
OKLCH	oklch(54.86% 0.16 263.8)
XYZ	xyz(18.3232, 15.9781, 59.8642)
Luminance	0.1598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BCD #CDA13F

analogous

#3FB2CD #3F6BCD #5A3FCD

triadic

#3F6BCD #CD3F6B #6BCD3F

tetradic

#3F6BCD #CD3FB2 #CDA13F #3FCD5A

square

#3F6BCD #CD3FB2 #CDA13F #3FCD5A

split-complementary

#3F6BCD #CD5A3F #B2CD3F

monochromatic

#1E3974 #2B50A4 #3F6BCD #7090DA #A0B6E6

Accessibility & contrast

On white

5.00

#3F6BCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#3F6BCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BCD

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BCD	#FFFFFF	#000000	##FFFFFF
##3F6BCD	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)

#3676D1

Deuteranopia (green-blind)

#1169CB

Tritanopia (blue-blind)

#008292

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6bcd;
/* rgb */ color: rgb(63, 107, 205);
/* oklch */ color: oklch(54.9% 0.160 263.8);

Tailwind

colors: {
  custom: {
    50: '#8494dd',
    500: '#3f6bcd',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bcd;
$custom-light: #8494dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bcd",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 205
  },
  "hsl": {
    "h": 221.408,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.54864,
    "c": 0.15954,
    "h": 263.8
  },
  "luminance": 0.1598
}

Semantic roles & 50–950 ramp

primary

#3F6BCD

secondary

#D3C095

accent

#B246E2

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6BCD

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

Preview Lab → · Contrast checker → · Palette generator →