#3683C5#3683C5

#3683C5 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.3% C 0.126 H 247.8°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3683C5
RGB	rgb(54, 131, 197)
HSL	hsl(208, 57%, 49%)
HSV	hsv(208, 73%, 77%)
CMYK	cmyk(72.6%, 33.5%, 0%, 22.7%)
CIE-LAB	lab(53.00, -1.45, -41.12)
CIE-LCH	lch(53.00, 41.14, 267.98°)
OKLab	oklab(59.33% -0.0476 -0.1167)
OKLCH	oklch(59.33% 0.126 247.8)
XYZ	xyz(19.7118, 21.0459, 55.8359)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683C5 #C57836

analogous

#36C5C0 #3683C5 #363CC5

triadic

#3683C5 #C53683 #83C536

tetradic

#3683C5 #C036C5 #C57836 #3CC536

square

#3683C5 #C036C5 #C57836 #3CC536

split-complementary

#3683C5 #C5363C #C5C036

monochromatic

#1C4365 #296395 #3683C5 #64A0D4 #94BEE2

Accessibility & contrast

On white

4.03

#3683C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#3683C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683C5

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683C5	#FFFFFF	#000000	##000000
##3683C5	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6586C8

Deuteranopia (green-blind)

#5178C4

Tritanopia (blue-blind)

#00939B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3683c5;
/* rgb */ color: rgb(54, 131, 197);
/* oklch */ color: oklch(59.3% 0.126 247.8);

Tailwind

colors: {
  custom: {
    50: '#7fa6d7',
    500: '#3683c5',
    950: '#000000',
  },
}

SCSS

$custom: #3683c5;
$custom-light: #7fa6d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3683c5",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 197
  },
  "hsl": {
    "h": 207.692,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.59328,
    "c": 0.12605,
    "h": 247.8
  },
  "luminance": 0.21048
}

Semantic roles & 50–950 ramp

primary

#3683C5

secondary

#CDA98A

accent

#8E48E0

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3683C5

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

Preview Lab → · Contrast checker → · Palette generator →