#378EA0#378EA0

#378EA0 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.2% C 0.086 H 213.8°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#378EA0
RGB	rgb(55, 142, 160)
HSL	hsl(190, 49%, 42%)
HSV	hsv(190, 66%, 63%)
CMYK	cmyk(65.6%, 11.2%, 0%, 37.3%)
CIE-LAB	lab(54.76, -20.04, -17.20)
CIE-LCH	lch(54.76, 26.41, 220.63°)
OKLab	oklab(60.21% -0.0714 -0.0478)
OKLCH	oklch(60.21% 0.086 213.8)
XYZ	xyz(17.5911, 22.6944, 36.7043)
Luminance	0.2270 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EA0 #A04937

analogous

#37A07E #378EA0 #3759A0

triadic

#378EA0 #A0378E #8EA037

tetradic

#378EA0 #7E37A0 #A04937 #59A037

square

#378EA0 #7E37A0 #A04937 #59A037

split-complementary

#378EA0 #A03759 #A07E37

monochromatic

#183D45 #276672 #378EA0 #51B0C3 #7FC4D3

Accessibility & contrast

On white

3.79

#378EA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#378EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EA0

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EA0	#FFFFFF	#000000	##000000
##378EA0	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8189A1

Deuteranopia (green-blind)

#727EA0

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378ea0;
/* rgb */ color: rgb(55, 142, 160);
/* oklch */ color: oklch(60.2% 0.086 213.8);

Tailwind

colors: {
  custom: {
    50: '#7aafbc',
    500: '#378ea0',
    950: '#000000',
  },
}

SCSS

$custom: #378ea0;
$custom-light: #7aafbc;
$custom-dark: #000000;

JSON

{
  "hex": "#378ea0",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 160
  },
  "hsl": {
    "h": 190.286,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.60209,
    "c": 0.08591,
    "h": 213.8
  },
  "luminance": 0.22696
}

Semantic roles & 50–950 ramp

primary

#378EA0

secondary

#BC8377

accent

#674FD8

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378EA0

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

Preview Lab → · Contrast checker → · Palette generator →