#3684BD#3684BD

#3684BD is a mid, moderate cyan. Relative luminance 0.210; OKLCH L 59.1% C 0.116 H 243.9°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3684BD
RGB	rgb(54, 132, 189)
HSL	hsl(205, 56%, 48%)
HSV	hsv(205, 71%, 74%)
CMYK	cmyk(71.4%, 30.2%, 0%, 25.9%)
CIE-LAB	lab(52.90, -4.88, -36.70)
CIE-LCH	lch(52.90, 37.03, 262.42°)
OKLab	oklab(59.12% -0.051 -0.1038)
OKLCH	oklch(59.12% 0.116 243.9)
XYZ	xyz(18.9544, 20.9588, 51.1808)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684BD #BD6F36

analogous

#36BDB2 #3684BD #3641BD

triadic

#3684BD #BD3684 #84BD36

tetradic

#3684BD #B236BD #BD6F36 #41BD36

square

#3684BD #B236BD #BD6F36 #41BD36

split-complementary

#3684BD #BD3641 #BDB236

monochromatic

#1B425E #28638D #3684BD #5FA1D1 #8FBDDF

Accessibility & contrast

On white

4.04

#3684BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3684BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684BD

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684BD	#FFFFFF	#000000	##000000
##3684BD	1.00	4.04	5.19	5.19
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A85C0

Deuteranopia (green-blind)

#5779BC

Tritanopia (blue-blind)

#009298

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3684bd;
/* rgb */ color: rgb(54, 132, 189);
/* oklch */ color: oklch(59.1% 0.116 243.9);

Tailwind

colors: {
  custom: {
    50: '#7ea7d1',
    500: '#3684bd',
    950: '#000000',
  },
}

SCSS

$custom: #3684bd;
$custom-light: #7ea7d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3684bd",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 189
  },
  "hsl": {
    "h": 205.333,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.59124,
    "c": 0.11566,
    "h": 243.9
  },
  "luminance": 0.20961
}

Semantic roles & 50–950 ramp

primary

#3684BD

secondary

#C9A285

accent

#8849DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3684BD

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

Preview Lab → · Contrast checker → · Palette generator →