#378DD6#378DD6

#378DD6 is a light, vivid cyan. Relative luminance 0.247; OKLCH L 62.6% C 0.137 H 247.9°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#378DD6
RGB	rgb(55, 141, 214)
HSL	hsl(208, 66%, 53%)
HSV	hsv(208, 74%, 84%)
CMYK	cmyk(74.3%, 34.1%, 0%, 16.1%)
CIE-LAB	lab(56.80, -1.15, -44.73)
CIE-LCH	lch(56.80, 44.74, 268.53°)
OKLab	oklab(62.6% -0.0517 -0.1271)
OKLCH	oklch(62.6% 0.137 247.9)
XYZ	xyz(23.2334, 24.7143, 67.1512)
Luminance	0.2472 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DD6 #D68037

analogous

#37D6CF #378DD6 #373ED6

triadic

#378DD6 #D6378D #8DD637

tetradic

#378DD6 #CF37D6 #D68037 #3ED637

square

#378DD6 #CF37D6 #D68037 #3ED637

split-complementary

#378DD6 #D6373E #D6CF37

monochromatic

#194D7A #236EAC #378DD6 #6AAAE0 #9DC7EB

Accessibility & contrast

On white

3.53

#378DD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#378DD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DD6

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DD6	#FFFFFF	#000000	##000000
##378DD6	1.00	3.53	5.94	5.94
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B90D9

Deuteranopia (green-blind)

#5582D5

Tritanopia (blue-blind)

#009EA7

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #378dd6;
/* rgb */ color: rgb(55, 141, 214);
/* oklch */ color: oklch(62.6% 0.137 247.9);

Tailwind

colors: {
  custom: {
    50: '#82aee3',
    500: '#378dd6',
    950: '#000000',
  },
}

SCSS

$custom: #378dd6;
$custom-light: #82aee3;
$custom-dark: #000000;

JSON

{
  "hex": "#378dd6",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 214
  },
  "hsl": {
    "h": 207.547,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.626,
    "c": 0.1372,
    "h": 247.9
  },
  "luminance": 0.24717
}

Semantic roles & 50–950 ramp

primary

#378DD6

secondary

#D7B292

accent

#8D3FE9

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #378DD6

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

Preview Lab → · Contrast checker → · Palette generator →