#378AA4#378AA4

#378AA4 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.4% C 0.088 H 222.0°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#378AA4
RGB	rgb(55, 138, 164)
HSL	hsl(194, 50%, 43%)
HSV	hsv(194, 66%, 64%)
CMYK	cmyk(66.5%, 15.9%, 0%, 35.7%)
CIE-LAB	lab(53.67, -16.61, -21.16)
CIE-LCH	lch(53.67, 26.90, 231.86°)
OKLab	oklab(59.39% -0.0654 -0.059)
OKLCH	oklch(59.39% 0.088 222)
XYZ	xyz(17.3622, 21.6677, 38.3820)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AA4 #A45137

analogous

#37A487 #378AA4 #3753A4

triadic

#378AA4 #A4378A #8AA437

tetradic

#378AA4 #8737A4 #A45137 #53A437

square

#378AA4 #8737A4 #A45137 #53A437

split-complementary

#378AA4 #A43753 #A48737

monochromatic

#183D48 #286376 #378AA4 #53AAC5 #81C1D5

Accessibility & contrast

On white

3.94

#378AA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#378AA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AA4

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AA4	#FFFFFF	#000000	##000000
##378AA4	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B87A5

Deuteranopia (green-blind)

#6B7BA4

Tritanopia (blue-blind)

#009292

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #378aa4;
/* rgb */ color: rgb(55, 138, 164);
/* oklch */ color: oklch(59.4% 0.088 222.0);

Tailwind

colors: {
  custom: {
    50: '#7bacbf',
    500: '#378aa4',
    950: '#000000',
  },
}

SCSS

$custom: #378aa4;
$custom-light: #7bacbf;
$custom-dark: #000000;

JSON

{
  "hex": "#378aa4",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 164
  },
  "hsl": {
    "h": 194.312,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.59389,
    "c": 0.08811,
    "h": 222
  },
  "luminance": 0.2167
}

Semantic roles & 50–950 ramp

primary

#378AA4

secondary

#BE8979

accent

#704FD9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378AA4

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

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