#3684B8#3684B8

#3684B8 is a mid, moderate cyan. Relative luminance 0.207; OKLCH L 58.9% C 0.110 H 241.4°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3684B8
RGB	rgb(54, 132, 184)
HSL	hsl(204, 55%, 47%)
HSV	hsv(204, 71%, 72%)
CMYK	cmyk(70.7%, 28.3%, 0%, 27.8%)
CIE-LAB	lab(52.67, -6.64, -34.21)
CIE-LCH	lch(52.67, 34.85, 259.02°)
OKLab	oklab(58.86% -0.0526 -0.0966)
OKLCH	oklch(58.86% 0.11 241.4)
XYZ	xyz(18.4210, 20.7455, 48.3716)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684B8 #B86A36

analogous

#36B8AB #3684B8 #3643B8

triadic

#3684B8 #B83684 #84B836

tetradic

#3684B8 #AB36B8 #B86A36 #43B836

square

#3684B8 #AB36B8 #B86A36 #43B836

split-complementary

#3684B8 #B83643 #B8AB36

monochromatic

#1A4059 #286289 #3684B8 #5CA1CF #8BBCDD

Accessibility & contrast

On white

4.08

#3684B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3684B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684B8

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684B8	#FFFFFF	#000000	##000000
##3684B8	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C85BA

Deuteranopia (green-blind)

#5A78B7

Tritanopia (blue-blind)

#009196

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3684b8;
/* rgb */ color: rgb(54, 132, 184);
/* oklch */ color: oklch(58.9% 0.110 241.4);

Tailwind

colors: {
  custom: {
    50: '#7da7cd',
    500: '#3684b8',
    950: '#000000',
  },
}

SCSS

$custom: #3684b8;
$custom-light: #7da7cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3684b8",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 184
  },
  "hsl": {
    "h": 204,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.58862,
    "c": 0.10996,
    "h": 241.4
  },
  "luminance": 0.20747
}

Semantic roles & 50–950 ramp

primary

#3684B8

secondary

#C79E82

accent

#854ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3684B8

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

Preview Lab → · Contrast checker → · Palette generator →