#378AD6#378AD6

#378AD6 is a mid, vivid cyan. Relative luminance 0.238; OKLCH L 61.9% C 0.140 H 249.5°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX#378AD6
RGBrgb(55, 138, 214)
HSLhsl(209, 66%, 53%)
HSVhsv(209, 74%, 84%)
CMYKcmyk(74.3%, 35.5%, 0%, 16.1%)
CIE-LABlab(55.93, 0.62, -46.10)
CIE-LCHlch(55.93, 46.11, 270.77°)
OKLaboklab(61.92% -0.0489 -0.1312)
OKLCHoklch(61.92% 0.14 249.5)
XYZxyz(22.7970, 23.8416, 67.0057)
Luminance0.2384 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#378AD6 #D68337
analogous
#37D6D2 #378AD6 #373BD6
triadic
#378AD6 #D6378A #8AD637
tetradic
#378AD6 #D237D6 #D68337 #3BD637
square
#378AD6 #D237D6 #D68337 #3BD637
split-complementary
#378AD6 #D6373B #D6D237
monochromatic
#194B7A #236BAC #378AD6 #6AA8E0 #9DC5EB

Accessibility & contrast

On white

3.64
#378AD6 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.77
#378AD6 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AD6
5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##378AD6#FFFFFF#000000##000000
##378AD61.003.645.775.77
#FFFFFF3.641.0021.0021.00
#0000005.7721.001.001.00
##0000005.7721.001.001.00

Color blindness preview

Protanopia (red-blind)
#678ED9
Deuteranopia (green-blind)
#507FD5
Tritanopia (blue-blind)
#009CA6
Achromatopsia (no color)
#868686

Design tokens & code

CSS
--color: #378ad6;
/* rgb */ color: rgb(55, 138, 214);
/* oklch */ color: oklch(61.9% 0.140 249.5);
Tailwind
colors: {
  custom: {
    50: '#82abe3',
    500: '#378ad6',
    950: '#000000',
  },
}
SCSS
$custom: #378ad6;
$custom-light: #82abe3;
$custom-dark: #000000;
JSON
{
  "hex": "#378ad6",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 214
  },
  "hsl": {
    "h": 208.679,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.61919,
    "c": 0.13999,
    "h": 249.5
  },
  "luminance": 0.23844
}

Semantic roles & 50–950 ramp

primary
#378AD6
secondary
#D7B392
accent
#903FE9
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #378AD6

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

Preview Lab → · Contrast checker → · Palette generator →

#378AD6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva