#3783C1#3783C1

#3783C1 is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.1% C 0.121 H 246.5°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#3783C1
RGB	rgb(55, 131, 193)
HSL	hsl(207, 56%, 49%)
HSV	hsv(207, 72%, 76%)
CMYK	cmyk(71.5%, 32.1%, 0%, 24.3%)
CIE-LAB	lab(52.83, -2.74, -39.10)
CIE-LCH	lch(52.83, 39.20, 266.00°)
OKLab	oklab(59.14% -0.0482 -0.1108)
OKLCH	oklch(59.14% 0.121 246.5)
XYZ	xyz(19.3138, 20.8929, 53.4566)
Luminance	0.2089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783C1 #C17537

analogous

#37C1BA #3783C1 #373EC1

triadic

#3783C1 #C13783 #83C137

tetradic

#3783C1 #BA37C1 #C17537 #3EC137

square

#3783C1 #BA37C1 #C17537 #3EC137

split-complementary

#3783C1 #C1373E #C1BA37

monochromatic

#1C4262 #296391 #3783C1 #63A0D2 #92BDE0

Accessibility & contrast

On white

4.05

#3783C1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#3783C1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783C1

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783C1	#FFFFFF	#000000	##000000
##3783C1	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6785C4

Deuteranopia (green-blind)

#5478C0

Tritanopia (blue-blind)

#009299

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3783c1;
/* rgb */ color: rgb(55, 131, 193);
/* oklch */ color: oklch(59.1% 0.121 246.5);

Tailwind

colors: {
  custom: {
    50: '#7fa6d4',
    500: '#3783c1',
    950: '#000000',
  },
}

SCSS

$custom: #3783c1;
$custom-light: #7fa6d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3783c1",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 193
  },
  "hsl": {
    "h": 206.957,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.59139,
    "c": 0.12083,
    "h": 246.5
  },
  "luminance": 0.20895
}

Semantic roles & 50–950 ramp

primary

#3783C1

secondary

#CBA789

accent

#8C49DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3783C1

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

Preview Lab → · Contrast checker → · Palette generator →