#378EA2#378EA2

#378EA2 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.3% C 0.087 H 215.7°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#378EA2
RGB	rgb(55, 142, 162)
HSL	hsl(191, 49%, 43%)
HSV	hsv(191, 66%, 64%)
CMYK	cmyk(66%, 12.3%, 0%, 36.5%)
CIE-LAB	lab(54.83, -19.41, -18.24)
CIE-LCH	lch(54.83, 26.63, 223.22°)
OKLab	oklab(60.29% -0.0705 -0.0507)
OKLCH	oklch(60.29% 0.087 215.7)
XYZ	xyz(17.7674, 22.7649, 37.6331)
Luminance	0.2277 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EA2 #A24B37

analogous

#37A281 #378EA2 #3758A2

triadic

#378EA2 #A2378E #8EA237

tetradic

#378EA2 #8137A2 #A24B37 #58A237

square

#378EA2 #8137A2 #A24B37 #58A237

split-complementary

#378EA2 #A23758 #A28137

monochromatic

#183E47 #276674 #378EA2 #52AFC4 #80C4D4

Accessibility & contrast

On white

3.78

#378EA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#378EA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EA2

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EA2	#FFFFFF	#000000	##000000
##378EA2	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808AA3

Deuteranopia (green-blind)

#717EA2

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378ea2;
/* rgb */ color: rgb(55, 142, 162);
/* oklch */ color: oklch(60.3% 0.087 215.7);

Tailwind

colors: {
  custom: {
    50: '#7bafbd',
    500: '#378ea2',
    950: '#000000',
  },
}

SCSS

$custom: #378ea2;
$custom-light: #7bafbd;
$custom-dark: #000000;

JSON

{
  "hex": "#378ea2",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 162
  },
  "hsl": {
    "h": 191.215,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.60292,
    "c": 0.0869,
    "h": 215.7
  },
  "luminance": 0.22767
}

Semantic roles & 50–950 ramp

primary

#378EA2

secondary

#BD8578

accent

#694FD9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378EA2

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

Preview Lab → · Contrast checker → · Palette generator →