#378AC5#378AC5

#378AC5 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 61.0% C 0.120 H 243.3°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX#378AC5
RGBrgb(55, 138, 197)
HSLhsl(205, 56%, 49%)
HSVhsv(205, 72%, 77%)
CMYKcmyk(72.1%, 29.9%, 0%, 22.7%)
CIE-LABlab(55.09, -5.42, -37.82)
CIE-LCHlch(55.09, 38.21, 261.85°)
OKLaboklab(60.99% -0.0538 -0.107)
OKLCHoklch(60.99% 0.12 243.3)
XYZxyz(20.7382, 23.0181, 56.1625)
Luminance0.2302 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#378AC5 #C57237
analogous
#37C5B9 #378AC5 #3743C5
triadic
#378AC5 #C5378A #8AC537
tetradic
#378AC5 #B937C5 #C57237 #43C537
square
#378AC5 #B937C5 #C57237 #43C537
split-complementary
#378AC5 #C53743 #C5B937
monochromatic
#1C4765 #2A6895 #378AC5 #65A6D4 #95C2E1

Accessibility & contrast

On white

3.75
#378AC5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.60
#378AC5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AC5
5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##378AC5#FFFFFF#000000##000000
##378AC51.003.755.605.60
#FFFFFF3.751.0021.0021.00
#0000005.6021.001.001.00
##0000005.6021.001.001.00

Color blindness preview

Protanopia (red-blind)
#6F8BC8
Deuteranopia (green-blind)
#5B7EC4
Tritanopia (blue-blind)
#00989F
Achromatopsia (no color)
#848484

Design tokens & code

CSS
--color: #378ac5;
/* rgb */ color: rgb(55, 138, 197);
/* oklch */ color: oklch(61.0% 0.120 243.3);
Tailwind
colors: {
  custom: {
    50: '#7fabd7',
    500: '#378ac5',
    950: '#000000',
  },
}
SCSS
$custom: #378ac5;
$custom-light: #7fabd7;
$custom-dark: #000000;
JSON
{
  "hex": "#378ac5",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 197
  },
  "hsl": {
    "h": 204.93,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.60985,
    "c": 0.11976,
    "h": 243.3
  },
  "luminance": 0.2302
}

Semantic roles & 50–950 ramp

primary
#378AC5
secondary
#CDA68B
accent
#8748E0
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0B1014
muted
#7C7F83

Preview Lab

Preview with #378AC5

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

Preview Lab → · Contrast checker → · Palette generator →

#378AC5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva