#378BAE#378BAE

#378BAE is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.1% C 0.096 H 229.1°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#378BAE
RGB	rgb(55, 139, 174)
HSL	hsl(198, 52%, 45%)
HSV	hsv(198, 68%, 68%)
CMYK	cmyk(68.4%, 20.1%, 0%, 31.8%)
CIE-LAB	lab(54.38, -13.87, -25.82)
CIE-LCH	lch(54.38, 29.31, 241.76°)
OKLab	oklab(60.08% -0.0626 -0.0723)
OKLCH	oklch(60.08% 0.096 229.1)
XYZ	xyz(18.4451, 22.3314, 43.3745)
Luminance	0.2233 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BAE #AE5A37

analogous

#37AE95 #378BAE #3750AE

triadic

#378BAE #AE378B #8BAE37

tetradic

#378BAE #9537AE #AE5A37 #50AE37

square

#378BAE #9537AE #AE5A37 #50AE37

split-complementary

#378BAE #AE3750 #AE9537

monochromatic

#1A4151 #28667F #378BAE #58A9CA #86C1D9

Accessibility & contrast

On white

3.84

#378BAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#378BAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BAE

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BAE	#FFFFFF	#000000	##000000
##378BAE	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989B0

Deuteranopia (green-blind)

#687DAE

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378bae;
/* rgb */ color: rgb(55, 139, 174);
/* oklch */ color: oklch(60.1% 0.096 229.1);

Tailwind

colors: {
  custom: {
    50: '#7cadc6',
    500: '#378bae',
    950: '#000000',
  },
}

SCSS

$custom: #378bae;
$custom-light: #7cadc6;
$custom-dark: #000000;

JSON

{
  "hex": "#378bae",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 174
  },
  "hsl": {
    "h": 197.647,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.60084,
    "c": 0.09568,
    "h": 229.1
  },
  "luminance": 0.22333
}

Semantic roles & 50–950 ramp

primary

#378BAE

secondary

#C3927E

accent

#764CDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378BAE

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

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