#378ED6#378ED6

#378ED6 is a light, vivid cyan. Relative luminance 0.250; OKLCH L 62.8% C 0.136 H 247.3°. Best body text is #000000 at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#378ED6
RGB	rgb(55, 142, 214)
HSL	hsl(207, 66%, 53%)
HSV	hsv(207, 74%, 84%)
CMYK	cmyk(74.3%, 33.6%, 0%, 16.1%)
CIE-LAB	lab(57.09, -1.73, -44.27)
CIE-LCH	lch(57.09, 44.31, 267.76°)
OKLab	oklab(62.83% -0.0526 -0.1257)
OKLCH	oklch(62.83% 0.136 247.3)
XYZ	xyz(23.3815, 25.0106, 67.2005)
Luminance	0.2501 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378ED6 #D67F37

analogous

#37D6CF #378ED6 #373ED6

triadic

#378ED6 #D6378E #8ED637

tetradic

#378ED6 #CF37D6 #D67F37 #3ED637

square

#378ED6 #CF37D6 #D67F37 #3ED637

split-complementary

#378ED6 #D6373E #D6CF37

monochromatic

#194E7A #236EAC #378ED6 #6AABE0 #9DC7EB

Accessibility & contrast

On white

3.50

#378ED6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.00

#378ED6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378ED6

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378ED6	#FFFFFF	#000000	##000000
##378ED6	1.00	3.50	6.00	6.00
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.00	21.00	1.00	1.00
##000000	6.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D91D9

Deuteranopia (green-blind)

#5682D5

Tritanopia (blue-blind)

#009FA8

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #378ed6;
/* rgb */ color: rgb(55, 142, 214);
/* oklch */ color: oklch(62.8% 0.136 247.3);

Tailwind

colors: {
  custom: {
    50: '#83aee3',
    500: '#378ed6',
    950: '#000000',
  },
}

SCSS

$custom: #378ed6;
$custom-light: #83aee3;
$custom-dark: #000000;

JSON

{
  "hex": "#378ed6",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 214
  },
  "hsl": {
    "h": 207.17,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.62828,
    "c": 0.1363,
    "h": 247.3
  },
  "luminance": 0.25013
}

Semantic roles & 50–950 ramp

primary

#378ED6

secondary

#D7B192

accent

#8C3FE9

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #378ED6

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

Preview Lab → · Contrast checker → · Palette generator →