#378AA8#378AA8

#378AA8 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.6% C 0.091 H 225.4°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#378AA8
RGB	rgb(55, 138, 168)
HSL	hsl(196, 51%, 44%)
HSV	hsv(196, 67%, 66%)
CMYK	cmyk(67.3%, 17.9%, 0%, 34.1%)
CIE-LAB	lab(53.83, -15.31, -23.22)
CIE-LCH	lch(53.83, 27.81, 236.61°)
OKLab	oklab(59.57% -0.0639 -0.0649)
OKLCH	oklch(59.57% 0.091 225.4)
XYZ	xyz(17.7291, 21.8144, 40.3144)
Luminance	0.2182 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AA8 #A85537

analogous

#37A88D #378AA8 #3751A8

triadic

#378AA8 #A8378A #8AA837

tetradic

#378AA8 #8D37A8 #A85537 #51A837

square

#378AA8 #8D37A8 #A85537 #51A837

split-complementary

#378AA8 #A83751 #A88D37

monochromatic

#193E4C #28647A #378AA8 #55A9C7 #83C0D6

Accessibility & contrast

On white

3.92

#378AA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#378AA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AA8

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AA8	#FFFFFF	#000000	##000000
##378AA8	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A87AA

Deuteranopia (green-blind)

#6A7CA8

Tritanopia (blue-blind)

#009394

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378aa8;
/* rgb */ color: rgb(55, 138, 168);
/* oklch */ color: oklch(59.6% 0.091 225.4);

Tailwind

colors: {
  custom: {
    50: '#7bacc2',
    500: '#378aa8',
    950: '#000000',
  },
}

SCSS

$custom: #378aa8;
$custom-light: #7bacc2;
$custom-dark: #000000;

JSON

{
  "hex": "#378aa8",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 168
  },
  "hsl": {
    "h": 195.929,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.59566,
    "c": 0.09104,
    "h": 225.4
  },
  "luminance": 0.21816
}

Semantic roles & 50–950 ramp

primary

#378AA8

secondary

#C08D7B

accent

#734EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378AA8

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

Preview Lab → · Contrast checker → · Palette generator →