#3780C2#3780C2

#3780C2 is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.5% C 0.125 H 248.9°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3780C2
RGB	rgb(55, 128, 194)
HSL	hsl(208, 56%, 49%)
HSV	hsv(208, 72%, 76%)
CMYK	cmyk(71.6%, 34%, 0%, 23.9%)
CIE-LAB	lab(52.00, -0.60, -40.99)
CIE-LCH	lch(52.00, 40.99, 269.16°)
OKLab	oklab(58.5% -0.045 -0.1163)
OKLCH	oklch(58.5% 0.125 248.9)
XYZ	xyz(19.0287, 20.1435, 53.9137)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3780C2 #C27937

analogous

#37C2BF #3780C2 #373BC2

triadic

#3780C2 #C23780 #80C237

tetradic

#3780C2 #BF37C2 #C27937 #3BC237

square

#3780C2 #BF37C2 #C27937 #3BC237

split-complementary

#3780C2 #C2373B #C2BF37

monochromatic

#1C4163 #296192 #3780C2 #639ED3 #93BCE0

Accessibility & contrast

On white

4.18

#3780C2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3780C2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3780C2

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3780C2	#FFFFFF	#000000	##000000
##3780C2	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6283C5

Deuteranopia (green-blind)

#4E76C1

Tritanopia (blue-blind)

#009098

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3780c2;
/* rgb */ color: rgb(55, 128, 194);
/* oklch */ color: oklch(58.5% 0.125 248.9);

Tailwind

colors: {
  custom: {
    50: '#7fa4d5',
    500: '#3780c2',
    950: '#000000',
  },
}

SCSS

$custom: #3780c2;
$custom-light: #7fa4d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3780c2",
  "rgb": {
    "r": 55,
    "g": 128,
    "b": 194
  },
  "hsl": {
    "h": 208.489,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.585,
    "c": 0.12474,
    "h": 248.9
  },
  "luminance": 0.20146
}

Semantic roles & 50–950 ramp

primary

#3780C2

secondary

#CBA989

accent

#9049DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3780C2

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

Preview Lab → · Contrast checker → · Palette generator →