#378EBC#378EBC

#378EBC is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.5% C 0.107 H 235.6°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#378EBC
RGB	rgb(55, 142, 188)
HSL	hsl(201, 55%, 48%)
HSV	hsv(201, 71%, 74%)
CMYK	cmyk(70.7%, 24.5%, 0%, 26.3%)
CIE-LAB	lab(55.87, -10.82, -31.49)
CIE-LCH	lch(55.87, 33.30, 251.04°)
OKLab	oklab(61.47% -0.0607 -0.0886)
OKLCH	oklch(61.47% 0.107 235.6)
XYZ	xyz(20.3221, 23.7868, 51.0875)
Luminance	0.2379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EBC #BC6537

analogous

#37BCA8 #378EBC #374BBC

triadic

#378EBC #BC378E #8EBC37

tetradic

#378EBC #A837BC #BC6537 #4BBC37

square

#378EBC #A837BC #BC6537 #4BBC37

split-complementary

#378EBC #BC374B #BCA837

monochromatic

#1B465D #296A8D #378EBC #60A9D0 #8FC3DE

Accessibility & contrast

On white

3.65

#378EBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#378EBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EBC

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EBC	#FFFFFF	#000000	##000000
##378EBC	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788DBE

Deuteranopia (green-blind)

#6680BB

Tritanopia (blue-blind)

#009A9E

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #378ebc;
/* rgb */ color: rgb(55, 142, 188);
/* oklch */ color: oklch(61.5% 0.107 235.6);

Tailwind

colors: {
  custom: {
    50: '#7eafd0',
    500: '#378ebc',
    950: '#000000',
  },
}

SCSS

$custom: #378ebc;
$custom-light: #7eafd0;
$custom-dark: #000000;

JSON

{
  "hex": "#378ebc",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 188
  },
  "hsl": {
    "h": 200.752,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.61471,
    "c": 0.1074,
    "h": 235.6
  },
  "luminance": 0.23789
}

Semantic roles & 50–950 ramp

primary

#378EBC

secondary

#C99D86

accent

#7D4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #378EBC

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

Preview Lab → · Contrast checker → · Palette generator →