#3684D9#3684D9

#3684D9 is a mid, vivid cyan. Relative luminance 0.223; OKLCH L 60.7% C 0.150 H 253.2°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3684D9
RGB	rgb(54, 132, 217)
HSL	hsl(211, 68%, 53%)
HSV	hsv(211, 75%, 85%)
CMYK	cmyk(75.1%, 39.2%, 0%, 14.9%)
CIE-LAB	lab(54.34, 5.17, -50.32)
CIE-LCH	lch(54.34, 50.58, 275.87°)
OKLab	oklab(60.72% -0.0434 -0.1436)
OKLCH	oklch(60.72% 0.15 253.2)
XYZ	xyz(22.2923, 22.2940, 68.7605)
Luminance	0.2230 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684D9 #D98B36

analogous

#36D6D9 #3684D9 #3936D9

triadic

#3684D9 #D93684 #84D936

tetradic

#3684D9 #D936D6 #D98B36 #36D939

square

#3684D9 #D936D6 #D98B36 #36D939

split-complementary

#3684D9 #D93936 #D6D936

monochromatic

#18487D #2166B0 #3684D9 #69A3E3 #9DC3EC

Accessibility & contrast

On white

3.85

#3684D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#3684D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684D9

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684D9	#FFFFFF	#000000	##000000
##3684D9	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C8ADC

Deuteranopia (green-blind)

#427BD7

Tritanopia (blue-blind)

#0098A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3684d9;
/* rgb */ color: rgb(54, 132, 217);
/* oklch */ color: oklch(60.7% 0.150 253.2);

Tailwind

colors: {
  custom: {
    50: '#83a7e5',
    500: '#3684d9',
    950: '#000000',
  },
}

SCSS

$custom: #3684d9;
$custom-light: #83a7e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3684d9",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 217
  },
  "hsl": {
    "h": 211.288,
    "s": 68.201,
    "l": 53.137
  },
  "oklch": {
    "l": 0.60718,
    "c": 0.15004,
    "h": 253.2
  },
  "luminance": 0.22297
}

Semantic roles & 50–950 ramp

primary

#3684D9

secondary

#D9B792

accent

#983DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3684D9

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

Preview Lab → · Contrast checker → · Palette generator →