#378EC7#378EC7

#378EC7 is a light, moderate cyan. Relative luminance 0.243; OKLCH L 62.0% C 0.119 H 241.4°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#378EC7
RGB	rgb(55, 142, 199)
HSL	hsl(204, 57%, 50%)
HSV	hsv(204, 72%, 78%)
CMYK	cmyk(72.4%, 28.6%, 0%, 22%)
CIE-LAB	lab(56.37, -7.02, -36.96)
CIE-LCH	lch(56.37, 37.62, 259.24°)
OKLab	oklab(62.03% -0.057 -0.1044)
OKLCH	oklch(62.03% 0.119 241.4)
XYZ	xyz(21.5534, 24.2793, 57.5722)
Luminance	0.2428 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EC7 #C77037

analogous

#37C7B8 #378EC7 #3746C7

triadic

#378EC7 #C7378E #8EC737

tetradic

#378EC7 #B837C7 #C77037 #46C737

square

#378EC7 #B837C7 #C77037 #46C737

split-complementary

#378EC7 #C73746 #C7B837

monochromatic

#1C4A67 #2A6C97 #378EC7 #66A9D5 #96C4E2

Accessibility & contrast

On white

3.59

#378EC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#378EC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EC7

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EC7	#FFFFFF	#000000	##000000
##378EC7	1.00	3.59	5.86	5.86
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748FCA

Deuteranopia (green-blind)

#6081C6

Tritanopia (blue-blind)

#009CA2

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #378ec7;
/* rgb */ color: rgb(55, 142, 199);
/* oklch */ color: oklch(62.0% 0.119 241.4);

Tailwind

colors: {
  custom: {
    50: '#80aed8',
    500: '#378ec7',
    950: '#000000',
  },
}

SCSS

$custom: #378ec7;
$custom-light: #80aed8;
$custom-dark: #000000;

JSON

{
  "hex": "#378ec7",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 199
  },
  "hsl": {
    "h": 203.75,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.62025,
    "c": 0.11901,
    "h": 241.4
  },
  "luminance": 0.24282
}

Semantic roles & 50–950 ramp

primary

#378EC7

secondary

#CDA68C

accent

#8448E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #378EC7

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

Preview Lab → · Contrast checker → · Palette generator →