#378BA3#378BA3

#378BA3 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.6% C 0.087 H 220.0°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#378BA3
RGB	rgb(55, 139, 163)
HSL	hsl(193, 50%, 43%)
HSV	hsv(193, 66%, 64%)
CMYK	cmyk(66.3%, 14.7%, 0%, 36.1%)
CIE-LAB	lab(53.94, -17.48, -20.17)
CIE-LCH	lch(53.94, 26.69, 229.08°)
OKLab	oklab(59.59% -0.0669 -0.0562)
OKLCH	oklch(59.59% 0.087 220)
XYZ	xyz(17.4163, 21.9199, 37.9563)
Luminance	0.2192 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BA3 #A34F37

analogous

#37A385 #378BA3 #3755A3

triadic

#378BA3 #A3378B #8BA337

tetradic

#378BA3 #8537A3 #A34F37 #55A337

square

#378BA3 #8537A3 #A34F37 #55A337

split-complementary

#378BA3 #A33755 #A38537

monochromatic

#183D47 #286475 #378BA3 #52ABC5 #80C2D4

Accessibility & contrast

On white

3.90

#378BA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#378BA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BA3

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BA3	#FFFFFF	#000000	##000000
##378BA3	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C87A4

Deuteranopia (green-blind)

#6D7CA3

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378ba3;
/* rgb */ color: rgb(55, 139, 163);
/* oklch */ color: oklch(59.6% 0.087 220.0);

Tailwind

colors: {
  custom: {
    50: '#7badbe',
    500: '#378ba3',
    950: '#000000',
  },
}

SCSS

$custom: #378ba3;
$custom-light: #7badbe;
$custom-dark: #000000;

JSON

{
  "hex": "#378ba3",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 163
  },
  "hsl": {
    "h": 193.333,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.59592,
    "c": 0.08738,
    "h": 220
  },
  "luminance": 0.21922
}

Semantic roles & 50–950 ramp

primary

#378BA3

secondary

#BE8878

accent

#6D4FD9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378BA3

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

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