#3683C3#3683C3

#3683C3 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.2% C 0.124 H 247.0°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3683C3
RGB	rgb(54, 131, 195)
HSL	hsl(207, 57%, 49%)
HSV	hsv(207, 72%, 76%)
CMYK	cmyk(72.3%, 32.8%, 0%, 23.5%)
CIE-LAB	lab(52.90, -2.17, -40.14)
CIE-LCH	lch(52.90, 40.20, 266.91°)
OKLab	oklab(59.22% -0.0482 -0.1138)
OKLCH	oklch(59.22% 0.124 247)
XYZ	xyz(19.4842, 20.9548, 54.6370)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683C3 #C37636

analogous

#36C3BD #3683C3 #363DC3

triadic

#3683C3 #C33683 #83C336

tetradic

#3683C3 #BD36C3 #C37636 #3DC336

square

#3683C3 #BD36C3 #C37636 #3DC336

split-complementary

#3683C3 #C3363D #C3BD36

monochromatic

#1B4363 #296393 #3683C3 #63A0D4 #92BDE1

Accessibility & contrast

On white

4.05

#3683C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3683C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683C3

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683C3	#FFFFFF	#000000	##000000
##3683C3	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6686C6

Deuteranopia (green-blind)

#5278C2

Tritanopia (blue-blind)

#00929A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3683c3;
/* rgb */ color: rgb(54, 131, 195);
/* oklch */ color: oklch(59.2% 0.124 247.0);

Tailwind

colors: {
  custom: {
    50: '#7fa6d5',
    500: '#3683c3',
    950: '#000000',
  },
}

SCSS

$custom: #3683c3;
$custom-light: #7fa6d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3683c3",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 195
  },
  "hsl": {
    "h": 207.234,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.59217,
    "c": 0.12362,
    "h": 247
  },
  "luminance": 0.20957
}

Semantic roles & 50–950 ramp

primary

#3683C3

secondary

#CCA789

accent

#8D48E0

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3683C3

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

Preview Lab → · Contrast checker → · Palette generator →