#378DA1#378DA1

#378DA1 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.0% C 0.086 H 215.9°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#378DA1
RGB	rgb(55, 141, 161)
HSL	hsl(191, 49%, 42%)
HSV	hsv(191, 66%, 63%)
CMYK	cmyk(65.8%, 12.4%, 0%, 36.9%)
CIE-LAB	lab(54.48, -19.19, -18.19)
CIE-LCH	lch(54.48, 26.44, 223.46°)
OKLab	oklab(60% -0.0699 -0.0506)
OKLCH	oklch(60% 0.086 215.9)
XYZ	xyz(17.5308, 22.4333, 37.1175)
Luminance	0.2243 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DA1 #A14B37

analogous

#37A180 #378DA1 #3758A1

triadic

#378DA1 #A1378D #8DA137

tetradic

#378DA1 #8037A1 #A14B37 #58A137

square

#378DA1 #8037A1 #A14B37 #58A137

split-complementary

#378DA1 #A13758 #A18037

monochromatic

#183D46 #276573 #378DA1 #51AEC4 #7FC3D3

Accessibility & contrast

On white

3.83

#378DA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#378DA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DA1

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DA1	#FFFFFF	#000000	##000000
##378DA1	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)

#7F89A2

Deuteranopia (green-blind)

#707DA1

Tritanopia (blue-blind)

#009493

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378da1;
/* rgb */ color: rgb(55, 141, 161);
/* oklch */ color: oklch(60.0% 0.086 215.9);

Tailwind

colors: {
  custom: {
    50: '#7aaebc',
    500: '#378da1',
    950: '#000000',
  },
}

SCSS

$custom: #378da1;
$custom-light: #7aaebc;
$custom-dark: #000000;

JSON

{
  "hex": "#378da1",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 161
  },
  "hsl": {
    "h": 191.321,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.60002,
    "c": 0.08627,
    "h": 215.9
  },
  "luminance": 0.22435
}

Semantic roles & 50–950 ramp

primary

#378DA1

secondary

#BD8477

accent

#694FD9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378DA1

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

Preview Lab → · Contrast checker → · Palette generator →