#378BC2#378BC2

#378BC2 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.1% C 0.116 H 241.2°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#378BC2
RGB	rgb(55, 139, 194)
HSL	hsl(204, 56%, 49%)
HSV	hsv(204, 72%, 76%)
CMYK	cmyk(71.6%, 28.4%, 0%, 23.9%)
CIE-LAB	lab(55.25, -7.04, -35.88)
CIE-LCH	lch(55.25, 36.56, 258.89°)
OKLab	oklab(61.06% -0.0557 -0.1013)
OKLCH	oklch(61.06% 0.116 241.2)
XYZ	xyz(20.5420, 23.1702, 54.4182)
Luminance	0.2317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BC2 #C26E37

analogous

#37C2B4 #378BC2 #3746C2

triadic

#378BC2 #C2378B #8BC237

tetradic

#378BC2 #B437C2 #C26E37 #46C237

square

#378BC2 #B437C2 #C26E37 #46C237

split-complementary

#378BC2 #C23746 #C2B437

monochromatic

#1C4763 #296992 #378BC2 #63A7D3 #93C2E0

Accessibility & contrast

On white

3.73

#378BC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#378BC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BC2

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BC2	#FFFFFF	#000000	##000000
##378BC2	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#728CC4

Deuteranopia (green-blind)

#5F7EC1

Tritanopia (blue-blind)

#00999E

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378bc2;
/* rgb */ color: rgb(55, 139, 194);
/* oklch */ color: oklch(61.1% 0.116 241.2);

Tailwind

colors: {
  custom: {
    50: '#7facd4',
    500: '#378bc2',
    950: '#000000',
  },
}

SCSS

$custom: #378bc2;
$custom-light: #7facd4;
$custom-dark: #000000;

JSON

{
  "hex": "#378bc2",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 194
  },
  "hsl": {
    "h": 203.741,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.61063,
    "c": 0.11563,
    "h": 241.2
  },
  "luminance": 0.23173
}

Semantic roles & 50–950 ramp

primary

#378BC2

secondary

#CBA489

accent

#8449DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #378BC2

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

Preview Lab → · Contrast checker → · Palette generator →