#378CA0#378CA0

#378CA0 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.7% C 0.086 H 216.1°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#378CA0
RGB	rgb(55, 140, 160)
HSL	hsl(191, 49%, 42%)
HSV	hsv(191, 66%, 63%)
CMYK	cmyk(65.6%, 12.5%, 0%, 37.3%)
CIE-LAB	lab(54.14, -18.98, -18.14)
CIE-LCH	lch(54.14, 26.25, 223.71°)
OKLab	oklab(59.71% -0.0692 -0.0505)
OKLCH	oklch(59.71% 0.086 216.1)
XYZ	xyz(17.2962, 22.1046, 36.6060)
Luminance	0.2211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CA0 #A04B37

analogous

#37A080 #378CA0 #3757A0

triadic

#378CA0 #A0378C #8CA037

tetradic

#378CA0 #8037A0 #A04B37 #57A037

square

#378CA0 #8037A0 #A04B37 #57A037

split-complementary

#378CA0 #A03757 #A08037

monochromatic

#183C45 #276472 #378CA0 #51ADC3 #7FC3D3

Accessibility & contrast

On white

3.87

#378CA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#378CA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CA0

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CA0	#FFFFFF	#000000	##000000
##378CA0	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E88A1

Deuteranopia (green-blind)

#6F7DA0

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378ca0;
/* rgb */ color: rgb(55, 140, 160);
/* oklch */ color: oklch(59.7% 0.086 216.1);

Tailwind

colors: {
  custom: {
    50: '#7aadbc',
    500: '#378ca0',
    950: '#000000',
  },
}

SCSS

$custom: #378ca0;
$custom-light: #7aadbc;
$custom-dark: #000000;

JSON

{
  "hex": "#378ca0",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 160
  },
  "hsl": {
    "h": 191.429,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.59712,
    "c": 0.08565,
    "h": 216.1
  },
  "luminance": 0.22106
}

Semantic roles & 50–950 ramp

primary

#378CA0

secondary

#BC8477

accent

#694FD8

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378CA0

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

Preview Lab → · Contrast checker → · Palette generator →