#378AC2#378AC2

#378AC2 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.8% C 0.116 H 241.9°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#378AC2
RGB	rgb(55, 138, 194)
HSL	hsl(204, 56%, 49%)
HSV	hsv(204, 72%, 76%)
CMYK	cmyk(71.6%, 28.9%, 0%, 23.9%)
CIE-LAB	lab(54.95, -6.47, -36.34)
CIE-LCH	lch(54.95, 36.91, 259.91°)
OKLab	oklab(60.83% -0.0547 -0.1027)
OKLCH	oklch(60.83% 0.116 241.9)
XYZ	xyz(20.3979, 22.8819, 54.3701)
Luminance	0.2288 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AC2 #C26F37

analogous

#37C2B5 #378AC2 #3745C2

triadic

#378AC2 #C2378A #8AC237

tetradic

#378AC2 #B537C2 #C26F37 #45C237

square

#378AC2 #B537C2 #C26F37 #45C237

split-complementary

#378AC2 #C23745 #C2B537

monochromatic

#1C4663 #296892 #378AC2 #63A6D3 #93C1E0

Accessibility & contrast

On white

3.77

#378AC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#378AC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AC2

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AC2	#FFFFFF	#000000	##000000
##378AC2	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#708BC4

Deuteranopia (green-blind)

#5D7EC1

Tritanopia (blue-blind)

#00989E

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378ac2;
/* rgb */ color: rgb(55, 138, 194);
/* oklch */ color: oklch(60.8% 0.116 241.9);

Tailwind

colors: {
  custom: {
    50: '#7facd4',
    500: '#378ac2',
    950: '#000000',
  },
}

SCSS

$custom: #378ac2;
$custom-light: #7facd4;
$custom-dark: #000000;

JSON

{
  "hex": "#378ac2",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 194
  },
  "hsl": {
    "h": 204.173,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.60828,
    "c": 0.11636,
    "h": 241.9
  },
  "luminance": 0.22884
}

Semantic roles & 50–950 ramp

primary

#378AC2

secondary

#CBA489

accent

#8549DF

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #378AC2

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

Preview Lab → · Contrast checker → · Palette generator →