#3688CA#3688CA

#3688CA is a mid, vivid cyan. Relative luminance 0.227; OKLCH L 60.8% C 0.128 H 246.5°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#3688CA
RGB	rgb(54, 136, 202)
HSL	hsl(207, 58%, 50%)
HSV	hsv(207, 73%, 79%)
CMYK	cmyk(73.3%, 32.7%, 0%, 20.8%)
CIE-LAB	lab(54.71, -2.62, -41.25)
CIE-LCH	lch(54.71, 41.34, 266.37°)
OKLab	oklab(60.76% -0.0509 -0.117)
OKLCH	oklch(60.76% 0.128 246.5)
XYZ	xyz(20.9821, 22.6545, 59.1326)
Luminance	0.2266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688CA #CA7836

analogous

#36CAC2 #3688CA #363ECA

triadic

#3688CA #CA3688 #88CA36

tetradic

#3688CA #C236CA #CA7836 #3ECA36

square

#3688CA #C236CA #CA7836 #3ECA36

split-complementary

#3688CA #CA363E #CAC236

monochromatic

#1C476A #29689A #3688CA #66A5D7 #97C1E4

Accessibility & contrast

On white

3.80

#3688CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#3688CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688CA

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688CA	#FFFFFF	#000000	##000000
##3688CA	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8BCD

Deuteranopia (green-blind)

#557DC9

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3688ca;
/* rgb */ color: rgb(54, 136, 202);
/* oklch */ color: oklch(60.8% 0.128 246.5);

Tailwind

colors: {
  custom: {
    50: '#80aada',
    500: '#3688ca',
    950: '#000000',
  },
}

SCSS

$custom: #3688ca;
$custom-light: #80aada;
$custom-dark: #000000;

JSON

{
  "hex": "#3688ca",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 202
  },
  "hsl": {
    "h": 206.757,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.60759,
    "c": 0.12764,
    "h": 246.5
  },
  "luminance": 0.22657
}

Semantic roles & 50–950 ramp

primary

#3688CA

secondary

#CFAA8D

accent

#8C46E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3688CA

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

Preview Lab → · Contrast checker → · Palette generator →