#3688C3#3688C3

#3688C3 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.4% C 0.119 H 243.6°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3688C3
RGB	rgb(54, 136, 195)
HSL	hsl(205, 57%, 49%)
HSV	hsv(205, 72%, 76%)
CMYK	cmyk(72.3%, 30.3%, 0%, 23.5%)
CIE-LAB	lab(54.38, -5.10, -37.81)
CIE-LCH	lch(54.38, 38.16, 262.32°)
OKLab	oklab(60.38% -0.053 -0.107)
OKLCH	oklch(60.38% 0.119 243.6)
XYZ	xyz(20.1720, 22.3304, 54.8663)
Luminance	0.2233 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688C3 #C37136

analogous

#36C3B8 #3688C3 #3642C3

triadic

#3688C3 #C33688 #88C336

tetradic

#3688C3 #B836C3 #C37136 #42C336

square

#3688C3 #B836C3 #C37136 #42C336

split-complementary

#3688C3 #C33642 #C3B836

monochromatic

#1B4563 #296793 #3688C3 #63A4D4 #92C0E1

Accessibility & contrast

On white

3.84

#3688C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#3688C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688C3

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688C3	#FFFFFF	#000000	##000000
##3688C3	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D89C6

Deuteranopia (green-blind)

#597CC2

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3688c3;
/* rgb */ color: rgb(54, 136, 195);
/* oklch */ color: oklch(60.4% 0.119 243.6);

Tailwind

colors: {
  custom: {
    50: '#7faad5',
    500: '#3688c3',
    950: '#000000',
  },
}

SCSS

$custom: #3688c3;
$custom-light: #7faad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3688c3",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 195
  },
  "hsl": {
    "h": 205.106,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.60381,
    "c": 0.11943,
    "h": 243.6
  },
  "luminance": 0.22333
}

Semantic roles & 50–950 ramp

primary

#3688C3

secondary

#CCA589

accent

#8848E0

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #3688C3

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

Preview Lab → · Contrast checker → · Palette generator →