#378CA8#378CA8

#378CA8 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.1% C 0.091 H 223.3°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#378CA8
RGB	rgb(55, 140, 168)
HSL	hsl(195, 51%, 44%)
HSV	hsv(195, 67%, 66%)
CMYK	cmyk(67.3%, 16.7%, 0%, 34.1%)
CIE-LAB	lab(54.44, -16.40, -22.28)
CIE-LCH	lch(54.44, 27.66, 233.64°)
OKLab	oklab(60.06% -0.066 -0.0622)
OKLCH	oklch(60.06% 0.091 223.3)
XYZ	xyz(18.0187, 22.3936, 40.4110)
Luminance	0.2240 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CA8 #A85337

analogous

#37A88B #378CA8 #3753A8

triadic

#378CA8 #A8378C #8CA837

tetradic

#378CA8 #8B37A8 #A85337 #53A837

square

#378CA8 #8B37A8 #A85337 #53A837

split-complementary

#378CA8 #A83753 #A88B37

monochromatic

#193F4C #28667A #378CA8 #55ABC7 #83C2D6

Accessibility & contrast

On white

3.83

#378CA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#378CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CA8

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CA8	#FFFFFF	#000000	##000000
##378CA8	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C89A9

Deuteranopia (green-blind)

#6C7DA8

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378ca8;
/* rgb */ color: rgb(55, 140, 168);
/* oklch */ color: oklch(60.1% 0.091 223.3);

Tailwind

colors: {
  custom: {
    50: '#7badc2',
    500: '#378ca8',
    950: '#000000',
  },
}

SCSS

$custom: #378ca8;
$custom-light: #7badc2;
$custom-dark: #000000;

JSON

{
  "hex": "#378ca8",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 168
  },
  "hsl": {
    "h": 194.867,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.60057,
    "c": 0.09068,
    "h": 223.3
  },
  "luminance": 0.22396
}

Semantic roles & 50–950 ramp

primary

#378CA8

secondary

#C08C7B

accent

#704EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378CA8

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

Preview Lab → · Contrast checker → · Palette generator →