#3688C8#3688C8

#3688C8 is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 60.7% C 0.125 H 245.7°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3688C8
RGB	rgb(54, 136, 200)
HSL	hsl(206, 57%, 50%)
HSV	hsv(206, 73%, 78%)
CMYK	cmyk(73%, 32%, 0%, 21.6%)
CIE-LAB	lab(54.62, -3.33, -40.27)
CIE-LCH	lch(54.62, 40.41, 265.27°)
OKLab	oklab(60.65% -0.0515 -0.1142)
OKLCH	oklch(60.65% 0.125 245.7)
XYZ	xyz(20.7468, 22.5604, 57.8936)
Luminance	0.2256 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688C8 #C87636

analogous

#36C8BF #3688C8 #363FC8

triadic

#3688C8 #C83688 #88C836

tetradic

#3688C8 #BF36C8 #C87636 #3FC836

square

#3688C8 #BF36C8 #C87636 #3FC836

split-complementary

#3688C8 #C8363F #C8BF36

monochromatic

#1C4668 #296798 #3688C8 #66A5D6 #96C1E3

Accessibility & contrast

On white

3.81

#3688C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#3688C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688C8

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688C8	#FFFFFF	#000000	##000000
##3688C8	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B8ACB

Deuteranopia (green-blind)

#567CC7

Tritanopia (blue-blind)

#00979F

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3688c8;
/* rgb */ color: rgb(54, 136, 200);
/* oklch */ color: oklch(60.7% 0.125 245.7);

Tailwind

colors: {
  custom: {
    50: '#80aad9',
    500: '#3688c8',
    950: '#000000',
  },
}

SCSS

$custom: #3688c8;
$custom-light: #80aad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3688c8",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 200
  },
  "hsl": {
    "h": 206.301,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.6065,
    "c": 0.12526,
    "h": 245.7
  },
  "luminance": 0.22563
}

Semantic roles & 50–950 ramp

primary

#3688C8

secondary

#CEA98C

accent

#8A47E1

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #3688C8

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

Preview Lab → · Contrast checker → · Palette generator →