#378BC0#378BC0

#378BC0 is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 61.0% C 0.113 H 240.2°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX#378BC0
RGBrgb(55, 139, 192)
HSLhsl(203, 55%, 48%)
HSVhsv(203, 71%, 75%)
CMYKcmyk(71.4%, 27.6%, 0%, 24.7%)
CIE-LABlab(55.16, -7.74, -34.88)
CIE-LCHlch(55.16, 35.73, 257.49°)
OKLaboklab(60.96% -0.0563 -0.0984)
OKLCHoklch(60.96% 0.113 240.2)
XYZxyz(20.3189, 23.0810, 53.2432)
Luminance0.2308 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#378BC0 #C06C37
analogous
#37C0B0 #378BC0 #3746C0
triadic
#378BC0 #C0378B #8BC037
tetradic
#378BC0 #B037C0 #C06C37 #46C037
square
#378BC0 #B037C0 #C06C37 #46C037
split-complementary
#378BC0 #C03746 #C0B037
monochromatic
#1C4661 #296990 #378BC0 #62A7D2 #92C2E0

Accessibility & contrast

On white

3.74
#378BC0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.62
#378BC0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BC0
5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##378BC0#FFFFFF#000000##000000
##378BC01.003.745.625.62
#FFFFFF3.741.0021.0021.00
#0000005.6221.001.001.00
##0000005.6221.001.001.00

Color blindness preview

Protanopia (red-blind)
#728BC2
Deuteranopia (green-blind)
#607EBF
Tritanopia (blue-blind)
#00989D
Achromatopsia (no color)
#848484

Design tokens & code

CSS
--color: #378bc0;
/* rgb */ color: rgb(55, 139, 192);
/* oklch */ color: oklch(61.0% 0.113 240.2);
Tailwind
colors: {
  custom: {
    50: '#7facd3',
    500: '#378bc0',
    950: '#000000',
  },
}
SCSS
$custom: #378bc0;
$custom-light: #7facd3;
$custom-dark: #000000;
JSON
{
  "hex": "#378bc0",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 192
  },
  "hsl": {
    "h": 203.212,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.6096,
    "c": 0.11344,
    "h": 240.2
  },
  "luminance": 0.23083
}

Semantic roles & 50–950 ramp

primary
#378BC0
secondary
#CBA288
accent
#8349DF
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B1014
muted
#7C7F82

Preview Lab

Preview with #378BC0

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

Preview Lab → · Contrast checker → · Palette generator →

#378BC0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva