#378DB5#378DB5

#378DB5 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 60.9% C 0.101 H 232.1°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#378DB5
RGB	rgb(55, 141, 181)
HSL	hsl(199, 53%, 46%)
HSV	hsv(199, 70%, 71%)
CMYK	cmyk(69.6%, 22.1%, 0%, 29%)
CIE-LAB	lab(55.27, -12.63, -28.44)
CIE-LCH	lch(55.27, 31.12, 246.05°)
OKLab	oklab(60.9% -0.0621 -0.0798)
OKLCH	oklch(60.9% 0.101 232.1)
XYZ	xyz(19.4376, 23.1960, 47.1600)
Luminance	0.2320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DB5 #B55F37

analogous

#37B59E #378DB5 #374EB5

triadic

#378DB5 #B5378D #8DB537

tetradic

#378DB5 #9E37B5 #B55F37 #4EB537

square

#378DB5 #9E37B5 #B55F37 #4EB537

split-complementary

#378DB5 #B5374E #B59E37

monochromatic

#1A4457 #296886 #378DB5 #5CA9CD #8BC2DC

Accessibility & contrast

On white

3.72

#378DB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#378DB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DB5

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DB5	#FFFFFF	#000000	##000000
##378DB5	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798BB7

Deuteranopia (green-blind)

#687FB4

Tritanopia (blue-blind)

#00989A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378db5;
/* rgb */ color: rgb(55, 141, 181);
/* oklch */ color: oklch(60.9% 0.101 232.1);

Tailwind

colors: {
  custom: {
    50: '#7daecb',
    500: '#378db5',
    950: '#000000',
  },
}

SCSS

$custom: #378db5;
$custom-light: #7daecb;
$custom-dark: #000000;

JSON

{
  "hex": "#378db5",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 181
  },
  "hsl": {
    "h": 199.048,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.60895,
    "c": 0.10115,
    "h": 232.1
  },
  "luminance": 0.23198
}

Semantic roles & 50–950 ramp

primary

#378DB5

secondary

#C69782

accent

#794BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378DB5

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

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