#378CAE#378CAE

#378CAE is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.3% C 0.095 H 228.1°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#378CAE
RGB	rgb(55, 140, 174)
HSL	hsl(197, 52%, 45%)
HSV	hsv(197, 68%, 68%)
CMYK	cmyk(68.4%, 19.5%, 0%, 31.8%)
CIE-LAB	lab(54.68, -14.42, -25.35)
CIE-LCH	lch(54.68, 29.17, 240.36°)
OKLab	oklab(60.33% -0.0637 -0.071)
OKLCH	oklch(60.33% 0.095 228.1)
XYZ	xyz(18.5906, 22.6224, 43.4230)
Luminance	0.2262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CAE #AE5937

analogous

#37AE95 #378CAE #3750AE

triadic

#378CAE #AE378C #8CAE37

tetradic

#378CAE #9537AE #AE5937 #50AE37

square

#378CAE #9537AE #AE5937 #50AE37

split-complementary

#378CAE #AE3750 #AE9537

monochromatic

#1A4151 #28677F #378CAE #58AACA #86C1D9

Accessibility & contrast

On white

3.80

#378CAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#378CAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CAE

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CAE	#FFFFFF	#000000	##000000
##378CAE	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8AB0

Deuteranopia (green-blind)

#6A7EAE

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378cae;
/* rgb */ color: rgb(55, 140, 174);
/* oklch */ color: oklch(60.3% 0.095 228.1);

Tailwind

colors: {
  custom: {
    50: '#7cadc6',
    500: '#378cae',
    950: '#000000',
  },
}

SCSS

$custom: #378cae;
$custom-light: #7cadc6;
$custom-dark: #000000;

JSON

{
  "hex": "#378cae",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 174
  },
  "hsl": {
    "h": 197.143,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.60327,
    "c": 0.09535,
    "h": 228.1
  },
  "luminance": 0.22624
}

Semantic roles & 50–950 ramp

primary

#378CAE

secondary

#C3927E

accent

#754CDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378CAE

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

Preview Lab → · Contrast checker → · Palette generator →