#3688C6#3688C6

#3688C6 is a mid, vivid cyan. Relative luminance 0.225; OKLCH L 60.5% C 0.123 H 244.9°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3688C6
RGB	rgb(54, 136, 198)
HSL	hsl(206, 57%, 49%)
HSV	hsv(206, 73%, 78%)
CMYK	cmyk(72.7%, 31.3%, 0%, 22.4%)
CIE-LAB	lab(54.52, -4.04, -39.29)
CIE-LCH	lch(54.52, 39.50, 264.13°)
OKLab	oklab(60.54% -0.0521 -0.1113)
OKLCH	oklch(60.54% 0.123 244.9)
XYZ	xyz(20.5146, 22.4675, 56.6706)
Luminance	0.2247 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688C6 #C67436

analogous

#36C6BC #3688C6 #3640C6

triadic

#3688C6 #C63688 #88C636

tetradic

#3688C6 #BC36C6 #C67436 #40C636

square

#3688C6 #BC36C6 #C67436 #40C636

split-complementary

#3688C6 #C63640 #C6BC36

monochromatic

#1C4666 #296796 #3688C6 #64A4D5 #94C1E2

Accessibility & contrast

On white

3.82

#3688C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#3688C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688C6

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688C6	#FFFFFF	#000000	##000000
##3688C6	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8AC9

Deuteranopia (green-blind)

#587CC5

Tritanopia (blue-blind)

#00979E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3688c6;
/* rgb */ color: rgb(54, 136, 198);
/* oklch */ color: oklch(60.5% 0.123 244.9);

Tailwind

colors: {
  custom: {
    50: '#7faad7',
    500: '#3688c6',
    950: '#000000',
  },
}

SCSS

$custom: #3688c6;
$custom-light: #7faad7;
$custom-dark: #000000;

JSON

{
  "hex": "#3688c6",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 198
  },
  "hsl": {
    "h": 205.833,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.60541,
    "c": 0.12291,
    "h": 244.9
  },
  "luminance": 0.2247
}

Semantic roles & 50–950 ramp

primary

#3688C6

secondary

#CDA78B

accent

#8947E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #3688C6

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

Preview Lab → · Contrast checker → · Palette generator →