#378CCA#378CCA

#378CCA is a mid, vivid cyan. Relative luminance 0.238; OKLCH L 61.7% C 0.124 H 244.1°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX#378CCA
RGBrgb(55, 140, 202)
HSLhsl(205, 58%, 50%)
HSVhsv(205, 73%, 79%)
CMYKcmyk(72.8%, 30.7%, 0%, 20.8%)
CIE-LABlab(55.92, -4.82, -39.36)
CIE-LCHlch(55.92, 39.65, 263.02°)
OKLaboklab(61.72% -0.0542 -0.1114)
OKLCHoklch(61.72% 0.124 244.1)
XYZxyz(21.6102, 23.8302, 59.3264)
Luminance0.2383 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#378CCA #CA7537
analogous
#37CABE #378CCA #3742CA
triadic
#378CCA #CA378C #8CCA37
tetradic
#378CCA #BE37CA #CA7537 #42CA37
square
#378CCA #BE37CA #CA7537 #42CA37
split-complementary
#378CCA #CA3742 #CABE37
monochromatic
#1C496A #296B9B #378CCA #67A8D7 #98C4E4

Accessibility & contrast

On white

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

On black

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

Best text color

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

Contrast matrix

fg \ bg##378CCA#FFFFFF#000000##000000
##378CCA1.003.645.775.77
#FFFFFF3.641.0021.0021.00
#0000005.7721.001.001.00
##0000005.7721.001.001.00

Color blindness preview

Protanopia (red-blind)
#708ECD
Deuteranopia (green-blind)
#5B80C9
Tritanopia (blue-blind)
#009BA2
Achromatopsia (no color)
#868686

Design tokens & code

CSS
--color: #378cca;
/* rgb */ color: rgb(55, 140, 202);
/* oklch */ color: oklch(61.7% 0.124 244.1);
Tailwind
colors: {
  custom: {
    50: '#80adda',
    500: '#378cca',
    950: '#000000',
  },
}
SCSS
$custom: #378cca;
$custom-light: #80adda;
$custom-dark: #000000;
JSON
{
  "hex": "#378cca",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 202
  },
  "hsl": {
    "h": 205.306,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.61716,
    "c": 0.12392,
    "h": 244.1
  },
  "luminance": 0.23833
}

Semantic roles & 50–950 ramp

primary
#378CCA
secondary
#CFA98E
accent
#8846E1
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #378CCA

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

Preview Lab → · Contrast checker → · Palette generator →

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