#378BAC#378BAC

#378BAC is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.0% C 0.094 H 227.6°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#378BAC
RGB	rgb(55, 139, 172)
HSL	hsl(197, 52%, 45%)
HSV	hsv(197, 68%, 67%)
CMYK	cmyk(68%, 19.2%, 0%, 32.5%)
CIE-LAB	lab(54.30, -14.53, -24.80)
CIE-LCH	lch(54.30, 28.74, 239.63°)
OKLab	oklab(59.99% -0.0634 -0.0694)
OKLCH	oklch(59.99% 0.094 227.6)
XYZ	xyz(18.2516, 22.2540, 42.3553)
Luminance	0.2226 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BAC #AC5837

analogous

#37AC93 #378BAC #3751AC

triadic

#378BAC #AC378B #8BAC37

tetradic

#378BAC #9337AC #AC5837 #51AC37

square

#378BAC #9337AC #AC5837 #51AC37

split-complementary

#378BAC #AC3751 #AC9337

monochromatic

#19404F #28667E #378BAC #57A9C9 #85C1D8

Accessibility & contrast

On white

3.85

#378BAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#378BAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BAC

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BAC	#FFFFFF	#000000	##000000
##378BAC	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A89AE

Deuteranopia (green-blind)

#697DAC

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378bac;
/* rgb */ color: rgb(55, 139, 172);
/* oklch */ color: oklch(60.0% 0.094 227.6);

Tailwind

colors: {
  custom: {
    50: '#7cadc4',
    500: '#378bac',
    950: '#000000',
  },
}

SCSS

$custom: #378bac;
$custom-light: #7cadc4;
$custom-dark: #000000;

JSON

{
  "hex": "#378bac",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 172
  },
  "hsl": {
    "h": 196.923,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.59992,
    "c": 0.09399,
    "h": 227.6
  },
  "luminance": 0.22256
}

Semantic roles & 50–950 ramp

primary

#378BAC

secondary

#C2907D

accent

#754DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #378BAC

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

Preview Lab → · Contrast checker → · Palette generator →