#3784B8#3784B8

#3784B8 is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 58.9% C 0.110 H 241.7°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX#3784B8
RGBrgb(55, 132, 184)
HSLhsl(204, 54%, 47%)
HSVhsv(204, 70%, 72%)
CMYKcmyk(70.1%, 28.3%, 0%, 27.8%)
CIE-LABlab(52.70, -6.49, -34.16)
CIE-LCHlch(52.70, 34.77, 259.25°)
OKLaboklab(58.9% -0.0519 -0.0964)
OKLCHoklch(58.9% 0.11 241.7)
XYZxyz(18.4752, 20.7734, 48.3741)
Luminance0.2077 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3784B8 #B86B37
analogous
#37B8AC #3784B8 #3744B8
triadic
#3784B8 #B83784 #84B837
tetradic
#3784B8 #AC37B8 #B86B37 #44B837
square
#3784B8 #AC37B8 #B86B37 #44B837
split-complementary
#3784B8 #B83744 #B8AC37
monochromatic
#1B405A #296289 #3784B8 #5DA1CF #8DBCDD

Accessibility & contrast

On white

4.07
#3784B8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.15
#3784B8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784B8
5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3784B8#FFFFFF#000000##000000
##3784B81.004.075.155.15
#FFFFFF4.071.0021.0021.00
#0000005.1521.001.001.00
##0000005.1521.001.001.00

Color blindness preview

Protanopia (red-blind)
#6C85BA
Deuteranopia (green-blind)
#5A78B7
Tritanopia (blue-blind)
#009196
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #3784b8;
/* rgb */ color: rgb(55, 132, 184);
/* oklch */ color: oklch(58.9% 0.110 241.7);
Tailwind
colors: {
  custom: {
    50: '#7da7cd',
    500: '#3784b8',
    950: '#000000',
  },
}
SCSS
$custom: #3784b8;
$custom-light: #7da7cd;
$custom-dark: #000000;
JSON
{
  "hex": "#3784b8",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 184
  },
  "hsl": {
    "h": 204.186,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.58895,
    "c": 0.10952,
    "h": 241.7
  },
  "luminance": 0.20775
}

Semantic roles & 50–950 ramp

primary
#3784B8
secondary
#C79F84
accent
#864ADD
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B0F13
muted
#7C7F82

Preview Lab

Preview with #3784B8

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

Preview Lab → · Contrast checker → · Palette generator →

#3784B8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva