#3783C6#3783C6

#3783C6 is a mid, vivid cyan. Relative luminance 0.211; OKLCH L 59.4% C 0.127 H 248.4°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3783C6
RGB	rgb(55, 131, 198)
HSL	hsl(208, 57%, 50%)
HSV	hsv(208, 72%, 78%)
CMYK	cmyk(72.2%, 33.8%, 0%, 22.4%)
CIE-LAB	lab(53.08, -0.96, -41.56)
CIE-LCH	lch(53.08, 41.57, 268.68°)
OKLab	oklab(59.42% -0.0468 -0.118)
OKLCH	oklch(59.42% 0.127 248.4)
XYZ	xyz(19.8810, 21.1198, 56.4439)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783C6 #C67A37

analogous

#37C6C2 #3783C6 #373BC6

triadic

#3783C6 #C63783 #83C637

tetradic

#3783C6 #C237C6 #C67A37 #3BC637

square

#3783C6 #C237C6 #C67A37 #3BC637

split-complementary

#3783C6 #C6373B #C6C237

monochromatic

#1C4466 #2A6396 #3783C6 #66A1D4 #96BEE2

Accessibility & contrast

On white

4.02

#3783C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#3783C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783C6

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783C6	#FFFFFF	#000000	##000000
##3783C6	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6586C9

Deuteranopia (green-blind)

#5079C5

Tritanopia (blue-blind)

#00939B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3783c6;
/* rgb */ color: rgb(55, 131, 198);
/* oklch */ color: oklch(59.4% 0.127 248.4);

Tailwind

colors: {
  custom: {
    50: '#7fa6d7',
    500: '#3783c6',
    950: '#000000',
  },
}

SCSS

$custom: #3783c6;
$custom-light: #7fa6d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3783c6",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 198
  },
  "hsl": {
    "h": 208.112,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.59416,
    "c": 0.1269,
    "h": 248.4
  },
  "luminance": 0.21122
}

Semantic roles & 50–950 ramp

primary

#3783C6

secondary

#CDAA8C

accent

#8F48E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3783C6

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

Preview Lab → · Contrast checker → · Palette generator →