#378EC6#378EC6

#378EC6 is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 62.0% C 0.118 H 240.9°. Best body text is #000000 at 5.85:1 contrast (WCAG AA passes).

Color values

HEX#378EC6
RGBrgb(55, 142, 198)
HSLhsl(203, 57%, 50%)
HSVhsv(203, 72%, 78%)
CMYKcmyk(72.2%, 28.3%, 0%, 22.4%)
CIE-LABlab(56.32, -7.37, -36.46)
CIE-LCHlch(56.32, 37.20, 258.57°)
OKLaboklab(61.97% -0.0574 -0.103)
OKLCHoklch(61.97% 0.118 240.9)
XYZxyz(21.4376, 24.2330, 56.9627)
Luminance0.2424 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#378EC6 #C66F37
analogous
#37C6B7 #378EC6 #3746C6
triadic
#378EC6 #C6378E #8EC637
tetradic
#378EC6 #B737C6 #C66F37 #46C637
square
#378EC6 #B737C6 #C66F37 #46C637
split-complementary
#378EC6 #C63746 #C6B737
monochromatic
#1C4966 #2A6C96 #378EC6 #66A9D4 #96C4E2

Accessibility & contrast

On white

3.59
#378EC6 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.85
#378EC6 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EC6
5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##378EC6#FFFFFF#000000##000000
##378EC61.003.595.855.85
#FFFFFF3.591.0021.0021.00
#0000005.8521.001.001.00
##0000005.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#748FC9
Deuteranopia (green-blind)
#6081C5
Tritanopia (blue-blind)
#009CA1
Achromatopsia (no color)
#878787

Design tokens & code

CSS
--color: #378ec6;
/* rgb */ color: rgb(55, 142, 198);
/* oklch */ color: oklch(62.0% 0.118 240.9);
Tailwind
colors: {
  custom: {
    50: '#80aed7',
    500: '#378ec6',
    950: '#000000',
  },
}
SCSS
$custom: #378ec6;
$custom-light: #80aed7;
$custom-dark: #000000;
JSON
{
  "hex": "#378ec6",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 198
  },
  "hsl": {
    "h": 203.497,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.61973,
    "c": 0.11789,
    "h": 240.9
  },
  "luminance": 0.24235
}

Semantic roles & 50–950 ramp

primary
#378EC6
secondary
#CDA58C
accent
#8348E0
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0B1014
muted
#7C7F83

Preview Lab

Preview with #378EC6

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

Preview Lab → · Contrast checker → · Palette generator →

#378EC6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva