#378AAE#378AAE

#378AAE is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.8% C 0.096 H 230.1°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#378AAE
RGB	rgb(55, 138, 174)
HSL	hsl(198, 52%, 45%)
HSV	hsv(198, 68%, 68%)
CMYK	cmyk(68.4%, 20.7%, 0%, 31.8%)
CIE-LAB	lab(54.07, -13.31, -26.29)
CIE-LCH	lch(54.07, 29.47, 243.14°)
OKLab	oklab(59.84% -0.0616 -0.0737)
OKLCH	oklch(59.84% 0.096 230.1)
XYZ	xyz(18.3010, 22.0432, 43.3265)
Luminance	0.2205 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AAE #AE5B37

analogous

#37AE96 #378AAE #374FAE

triadic

#378AAE #AE378A #8AAE37

tetradic

#378AAE #9637AE #AE5B37 #4FAE37

square

#378AAE #9637AE #AE5B37 #4FAE37

split-complementary

#378AAE #AE374F #AE9637

monochromatic

#1A4051 #28657F #378AAE #58A8CA #86C0D9

Accessibility & contrast

On white

3.88

#378AAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#378AAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AAE

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AAE	#FFFFFF	#000000	##000000
##378AAE	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7888B0

Deuteranopia (green-blind)

#677CAD

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378aae;
/* rgb */ color: rgb(55, 138, 174);
/* oklch */ color: oklch(59.8% 0.096 230.1);

Tailwind

colors: {
  custom: {
    50: '#7cacc6',
    500: '#378aae',
    950: '#000000',
  },
}

SCSS

$custom: #378aae;
$custom-light: #7cacc6;
$custom-dark: #000000;

JSON

{
  "hex": "#378aae",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 174
  },
  "hsl": {
    "h": 198.151,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.59841,
    "c": 0.09603,
    "h": 230.1
  },
  "luminance": 0.22045
}

Semantic roles & 50–950 ramp

primary

#378AAE

secondary

#C3937E

accent

#784CDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378AAE

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

Preview Lab → · Contrast checker → · Palette generator →