#378DC2#378DC2

#378DC2 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.5% C 0.114 H 239.7°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#378DC2
RGB	rgb(55, 141, 194)
HSL	hsl(203, 56%, 49%)
HSV	hsv(203, 72%, 76%)
CMYK	cmyk(71.6%, 27.3%, 0%, 23.9%)
CIE-LAB	lab(55.84, -8.19, -34.95)
CIE-LCH	lch(55.84, 35.89, 256.81°)
OKLab	oklab(61.53% -0.0577 -0.0986)
OKLCH	oklch(61.53% 0.114 239.7)
XYZ	xyz(20.8342, 23.7547, 54.5156)
Luminance	0.2376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DC2 #C26C37

analogous

#37C2B2 #378DC2 #3748C2

triadic

#378DC2 #C2378D #8DC237

tetradic

#378DC2 #B237C2 #C26C37 #48C237

square

#378DC2 #B237C2 #C26C37 #48C237

split-complementary

#378DC2 #C23748 #C2B237

monochromatic

#1C4863 #296A92 #378DC2 #63A8D3 #93C3E0

Accessibility & contrast

On white

3.65

#378DC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#378DC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DC2

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DC2	#FFFFFF	#000000	##000000
##378DC2	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748DC4

Deuteranopia (green-blind)

#6180C1

Tritanopia (blue-blind)

#009A9F

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #378dc2;
/* rgb */ color: rgb(55, 141, 194);
/* oklch */ color: oklch(61.5% 0.114 239.7);

Tailwind

colors: {
  custom: {
    50: '#7faed4',
    500: '#378dc2',
    950: '#000000',
  },
}

SCSS

$custom: #378dc2;
$custom-light: #7faed4;
$custom-dark: #000000;

JSON

{
  "hex": "#378dc2",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 194
  },
  "hsl": {
    "h": 202.878,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.61533,
    "c": 0.11425,
    "h": 239.7
  },
  "luminance": 0.23757
}

Semantic roles & 50–950 ramp

primary

#378DC2

secondary

#CBA389

accent

#8249DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #378DC2

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

Preview Lab → · Contrast checker → · Palette generator →