#3684CC#3684CC

#3684CC is a mid, vivid cyan. Relative luminance 0.216; OKLCH L 60.0% C 0.134 H 249.6°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3684CC
RGB	rgb(54, 132, 204)
HSL	hsl(209, 60%, 51%)
HSV	hsv(209, 74%, 80%)
CMYK	cmyk(73.5%, 35.3%, 0%, 20%)
CIE-LAB	lab(53.65, 0.46, -44.07)
CIE-LCH	lch(53.65, 44.07, 270.60°)
OKLab	oklab(59.95% -0.0466 -0.1253)
OKLCH	oklch(59.95% 0.134 249.6)
XYZ	xyz(20.6676, 21.6441, 60.2035)
Luminance	0.2165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684CC #CC7E36

analogous

#36CCC9 #3684CC #3639CC

triadic

#3684CC #CC3684 #84CC36

tetradic

#3684CC #C936CC #CC7E36 #39CC36

square

#3684CC #C936CC #CC7E36 #39CC36

split-complementary

#3684CC #CC3639 #CCC936

monochromatic

#1B456C #28659D #3684CC #67A2D8 #98C0E5

Accessibility & contrast

On white

3.94

#3684CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#3684CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684CC

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684CC	#FFFFFF	#000000	##000000
##3684CC	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6388CF

Deuteranopia (green-blind)

#4D7ACB

Tritanopia (blue-blind)

#00959E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3684cc;
/* rgb */ color: rgb(54, 132, 204);
/* oklch */ color: oklch(60.0% 0.134 249.6);

Tailwind

colors: {
  custom: {
    50: '#80a7dc',
    500: '#3684cc',
    950: '#000000',
  },
}

SCSS

$custom: #3684cc;
$custom-light: #80a7dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3684cc",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 204
  },
  "hsl": {
    "h": 208.8,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.59953,
    "c": 0.13372,
    "h": 249.6
  },
  "luminance": 0.21646
}

Semantic roles & 50–950 ramp

primary

#3684CC

secondary

#D0AE8E

accent

#9145E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3684CC

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

Preview Lab → · Contrast checker → · Palette generator →