#378CA9#378CA9

#378CA9 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.1% C 0.091 H 224.1°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#378CA9
RGB	rgb(55, 140, 169)
HSL	hsl(195, 51%, 44%)
HSV	hsv(195, 67%, 66%)
CMYK	cmyk(67.5%, 17.2%, 0%, 33.7%)
CIE-LAB	lab(54.48, -16.07, -22.79)
CIE-LCH	lch(54.48, 27.89, 234.81°)
OKLab	oklab(60.1% -0.0656 -0.0636)
OKLCH	oklch(60.1% 0.091 224.1)
XYZ	xyz(18.1122, 22.4310, 40.9035)
Luminance	0.2243 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CA9 #A95437

analogous

#37A98D #378CA9 #3753A9

triadic

#378CA9 #A9378C #8CA937

tetradic

#378CA9 #8D37A9 #A95437 #53A937

square

#378CA9 #8D37A9 #A95437 #53A937

split-complementary

#378CA9 #A93753 #A98D37

monochromatic

#19404D #28667B #378CA9 #55ABC8 #84C2D7

Accessibility & contrast

On white

3.83

#378CA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#378CA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CA9

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CA9	#FFFFFF	#000000	##000000
##378CA9	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C89AB

Deuteranopia (green-blind)

#6C7DA9

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378ca9;
/* rgb */ color: rgb(55, 140, 169);
/* oklch */ color: oklch(60.1% 0.091 224.1);

Tailwind

colors: {
  custom: {
    50: '#7badc2',
    500: '#378ca9',
    950: '#000000',
  },
}

SCSS

$custom: #378ca9;
$custom-light: #7badc2;
$custom-dark: #000000;

JSON

{
  "hex": "#378ca9",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 169
  },
  "hsl": {
    "h": 195.263,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.60101,
    "c": 0.09141,
    "h": 224.1
  },
  "luminance": 0.22433
}

Semantic roles & 50–950 ramp

primary

#378CA9

secondary

#C08D7B

accent

#714DDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378CA9

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

Preview Lab → · Contrast checker → · Palette generator →