#3780C1#3780C1

#3780C1 is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.4% C 0.123 H 248.5°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX#3780C1
RGBrgb(55, 128, 193)
HSLhsl(208, 56%, 49%)
HSVhsv(208, 72%, 76%)
CMYKcmyk(71.5%, 33.7%, 0%, 24.3%)
CIE-LABlab(51.95, -0.96, -40.49)
CIE-LCHlch(51.95, 40.51, 268.65°)
OKLaboklab(58.44% -0.0453 -0.1149)
OKLCHoklch(58.44% 0.124 248.5)
XYZxyz(18.9167, 20.0987, 53.3242)
Luminance0.2010 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3780C1 #C17837
analogous
#37C1BD #3780C1 #373BC1
triadic
#3780C1 #C13780 #80C137
tetradic
#3780C1 #BD37C1 #C17837 #3BC137
square
#3780C1 #BD37C1 #C17837 #3BC137
split-complementary
#3780C1 #C1373B #C1BD37
monochromatic
#1C4162 #296091 #3780C1 #639ED2 #92BBE0

Accessibility & contrast

On white

4.18
#3780C1 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.02
#3780C1 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3780C1
5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3780C1#FFFFFF#000000##000000
##3780C11.004.185.025.02
#FFFFFF4.181.0021.0021.00
#0000005.0221.001.001.00
##0000005.0221.001.001.00

Color blindness preview

Protanopia (red-blind)
#6383C4
Deuteranopia (green-blind)
#4F76C0
Tritanopia (blue-blind)
#008F97
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #3780c1;
/* rgb */ color: rgb(55, 128, 193);
/* oklch */ color: oklch(58.4% 0.123 248.5);
Tailwind
colors: {
  custom: {
    50: '#7fa4d4',
    500: '#3780c1',
    950: '#000000',
  },
}
SCSS
$custom: #3780c1;
$custom-light: #7fa4d4;
$custom-dark: #000000;
JSON
{
  "hex": "#3780c1",
  "rgb": {
    "r": 55,
    "g": 128,
    "b": 193
  },
  "hsl": {
    "h": 208.261,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.58444,
    "c": 0.1235,
    "h": 248.5
  },
  "luminance": 0.20101
}

Semantic roles & 50–950 ramp

primary
#3780C1
secondary
#CBA889
accent
#9049DF
background
#F8FAFD
surface
#EFF4FA
border
#CACED3
text
#0B0F14
muted
#7C7F83

Preview Lab

Preview with #3780C1

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

Preview Lab → · Contrast checker → · Palette generator →

#3780C1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva