#378AC1#378AC1

#378AC1 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.8% C 0.115 H 241.5°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#378AC1
RGB	rgb(55, 138, 193)
HSL	hsl(204, 56%, 49%)
HSV	hsv(204, 72%, 76%)
CMYK	cmyk(71.5%, 28.5%, 0%, 24.3%)
CIE-LAB	lab(54.90, -6.82, -35.85)
CIE-LCH	lch(54.90, 36.49, 259.23°)
OKLab	oklab(60.78% -0.055 -0.1013)
OKLCH	oklch(60.78% 0.115 241.5)
XYZ	xyz(20.2859, 22.8372, 53.7806)
Luminance	0.2284 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AC1 #C16E37

analogous

#37C1B3 #378AC1 #3745C1

triadic

#378AC1 #C1378A #8AC137

tetradic

#378AC1 #B337C1 #C16E37 #45C137

square

#378AC1 #B337C1 #C16E37 #45C137

split-complementary

#378AC1 #C13745 #C1B337

monochromatic

#1C4662 #296891 #378AC1 #63A6D2 #92C1E0

Accessibility & contrast

On white

3.77

#378AC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#378AC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AC1

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AC1	#FFFFFF	#000000	##000000
##378AC1	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718BC3

Deuteranopia (green-blind)

#5E7EC0

Tritanopia (blue-blind)

#00989D

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378ac1;
/* rgb */ color: rgb(55, 138, 193);
/* oklch */ color: oklch(60.8% 0.115 241.5);

Tailwind

colors: {
  custom: {
    50: '#7facd4',
    500: '#378ac1',
    950: '#000000',
  },
}

SCSS

$custom: #378ac1;
$custom-light: #7facd4;
$custom-dark: #000000;

JSON

{
  "hex": "#378ac1",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 193
  },
  "hsl": {
    "h": 203.913,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.60776,
    "c": 0.11526,
    "h": 241.5
  },
  "luminance": 0.22839
}

Semantic roles & 50–950 ramp

primary

#378AC1

secondary

#CBA389

accent

#8549DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #378AC1

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

Preview Lab → · Contrast checker → · Palette generator →