#378BAF#378BAF

#378BAF is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.1% C 0.097 H 229.8°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#378BAF
RGB	rgb(55, 139, 175)
HSL	hsl(198, 52%, 45%)
HSV	hsv(198, 69%, 69%)
CMYK	cmyk(68.6%, 20.6%, 0%, 31.4%)
CIE-LAB	lab(54.42, -13.54, -26.33)
CIE-LCH	lch(54.42, 29.61, 242.79°)
OKLab	oklab(60.13% -0.0623 -0.0738)
OKLCH	oklch(60.13% 0.097 229.8)
XYZ	xyz(18.5429, 22.3706, 43.8898)
Luminance	0.2237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BAF #AF5B37

analogous

#37AF97 #378BAF #374FAF

triadic

#378BAF #AF378B #8BAF37

tetradic

#378BAF #9737AF #AF5B37 #4FAF37

square

#378BAF #9737AF #AF5B37 #4FAF37

split-complementary

#378BAF #AF374F #AF9737

monochromatic

#1A4152 #286680 #378BAF #59A8CB #87C1D9

Accessibility & contrast

On white

3.84

#378BAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#378BAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BAF

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BAF	#FFFFFF	#000000	##000000
##378BAF	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989B1

Deuteranopia (green-blind)

#687DAF

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378baf;
/* rgb */ color: rgb(55, 139, 175);
/* oklch */ color: oklch(60.1% 0.097 229.8);

Tailwind

colors: {
  custom: {
    50: '#7cadc7',
    500: '#378baf',
    950: '#000000',
  },
}

SCSS

$custom: #378baf;
$custom-light: #7cadc7;
$custom-dark: #000000;

JSON

{
  "hex": "#378baf",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 175
  },
  "hsl": {
    "h": 198,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.6013,
    "c": 0.09654,
    "h": 229.8
  },
  "luminance": 0.22373
}

Semantic roles & 50–950 ramp

primary

#378BAF

secondary

#C3937F

accent

#774CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378BAF

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

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