#3783C3#3783C3

#3783C3 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.2% C 0.123 H 247.3°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3783C3
RGB	rgb(55, 131, 195)
HSL	hsl(207, 56%, 49%)
HSV	hsv(207, 72%, 76%)
CMYK	cmyk(71.8%, 32.8%, 0%, 23.5%)
CIE-LAB	lab(52.93, -2.03, -40.09)
CIE-LCH	lch(52.93, 40.14, 267.11°)
OKLab	oklab(59.25% -0.0476 -0.1137)
OKLCH	oklch(59.25% 0.123 247.3)
XYZ	xyz(19.5384, 20.9828, 54.6395)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783C3 #C37737

analogous

#37C3BD #3783C3 #373DC3

triadic

#3783C3 #C33783 #83C337

tetradic

#3783C3 #BD37C3 #C37737 #3DC337

square

#3783C3 #BD37C3 #C37737 #3DC337

split-complementary

#3783C3 #C3373D #C3BD37

monochromatic

#1C4364 #2A6393 #3783C3 #64A0D3 #94BEE1

Accessibility & contrast

On white

4.04

#3783C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#3783C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783C3

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783C3	#FFFFFF	#000000	##000000
##3783C3	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	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: #3783c3;
/* rgb */ color: rgb(55, 131, 195);
/* oklch */ color: oklch(59.2% 0.123 247.3);

Tailwind

colors: {
  custom: {
    50: '#7fa6d5',
    500: '#3783c3',
    950: '#000000',
  },
}

SCSS

$custom: #3783c3;
$custom-light: #7fa6d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3783c3",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 195
  },
  "hsl": {
    "h": 207.429,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.59249,
    "c": 0.12325,
    "h": 247.3
  },
  "luminance": 0.20985
}

Semantic roles & 50–950 ramp

primary

#3783C3

secondary

#CCA88A

accent

#8D49DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3783C3

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

Preview Lab → · Contrast checker → · Palette generator →