#3688C5#3688C5

#3688C5 is a mid, vivid cyan. Relative luminance 0.224; OKLCH L 60.5% C 0.122 H 244.5°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3688C5
RGB	rgb(54, 136, 197)
HSL	hsl(206, 57%, 49%)
HSV	hsv(206, 73%, 77%)
CMYK	cmyk(72.6%, 31%, 0%, 22.7%)
CIE-LAB	lab(54.47, -4.39, -38.80)
CIE-LCH	lch(54.47, 39.05, 263.54°)
OKLab	oklab(60.49% -0.0524 -0.1099)
OKLCH	oklch(60.49% 0.122 244.5)
XYZ	xyz(20.3997, 22.4215, 56.0652)
Luminance	0.2242 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688C5 #C57336

analogous

#36C5BB #3688C5 #3641C5

triadic

#3688C5 #C53688 #88C536

tetradic

#3688C5 #BB36C5 #C57336 #41C536

square

#3688C5 #BB36C5 #C57336 #41C536

split-complementary

#3688C5 #C53641 #C5BB36

monochromatic

#1C4665 #296795 #3688C5 #64A4D4 #94C0E2

Accessibility & contrast

On white

3.83

#3688C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#3688C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688C5

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688C5	#FFFFFF	#000000	##000000
##3688C5	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8AC8

Deuteranopia (green-blind)

#587CC4

Tritanopia (blue-blind)

#00979E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3688c5;
/* rgb */ color: rgb(54, 136, 197);
/* oklch */ color: oklch(60.5% 0.122 244.5);

Tailwind

colors: {
  custom: {
    50: '#7faad7',
    500: '#3688c5',
    950: '#000000',
  },
}

SCSS

$custom: #3688c5;
$custom-light: #7faad7;
$custom-dark: #000000;

JSON

{
  "hex": "#3688c5",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 197
  },
  "hsl": {
    "h": 205.594,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.60487,
    "c": 0.12175,
    "h": 244.5
  },
  "luminance": 0.22424
}

Semantic roles & 50–950 ramp

primary

#3688C5

secondary

#CDA78A

accent

#8948E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #3688C5

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

Preview Lab → · Contrast checker → · Palette generator →