#3780C3#3780C3

#3780C3 is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.126 H 249.2°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3780C3
RGB	rgb(55, 128, 195)
HSL	hsl(209, 56%, 49%)
HSV	hsv(209, 72%, 76%)
CMYK	cmyk(71.8%, 34.4%, 0%, 23.5%)
CIE-LAB	lab(52.05, -0.24, -41.48)
CIE-LCH	lch(52.05, 41.48, 269.67°)
OKLab	oklab(58.56% -0.0447 -0.1178)
OKLCH	oklch(58.56% 0.126 249.2)
XYZ	xyz(19.1413, 20.1886, 54.5072)
Luminance	0.2019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3780C3 #C37A37

analogous

#37C3C0 #3780C3 #373AC3

triadic

#3780C3 #C33780 #80C337

tetradic

#3780C3 #C037C3 #C37A37 #3AC337

square

#3780C3 #C037C3 #C37A37 #3AC337

split-complementary

#3780C3 #C3373A #C3C037

monochromatic

#1C4164 #2A6193 #3780C3 #649ED3 #94BCE1

Accessibility & contrast

On white

4.17

#3780C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3780C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3780C3

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3780C3	#FFFFFF	#000000	##000000
##3780C3	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6283C6

Deuteranopia (green-blind)

#4E76C2

Tritanopia (blue-blind)

#009098

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3780c3;
/* rgb */ color: rgb(55, 128, 195);
/* oklch */ color: oklch(58.6% 0.126 249.2);

Tailwind

colors: {
  custom: {
    50: '#7fa4d5',
    500: '#3780c3',
    950: '#000000',
  },
}

SCSS

$custom: #3780c3;
$custom-light: #7fa4d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3780c3",
  "rgb": {
    "r": 55,
    "g": 128,
    "b": 195
  },
  "hsl": {
    "h": 208.714,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.58557,
    "c": 0.12598,
    "h": 249.2
  },
  "luminance": 0.20191
}

Semantic roles & 50–950 ramp

primary

#3780C3

secondary

#CCA98A

accent

#9149DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3780C3

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

Preview Lab → · Contrast checker → · Palette generator →