#378FA9#378FA9

#378FA9 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.8% C 0.091 H 220.9°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#378FA9
RGB	rgb(55, 143, 169)
HSL	hsl(194, 51%, 44%)
HSV	hsv(194, 67%, 66%)
CMYK	cmyk(67.5%, 15.4%, 0%, 33.7%)
CIE-LAB	lab(55.40, -17.70, -21.38)
CIE-LCH	lch(55.40, 27.76, 230.38°)
OKLab	oklab(60.84% -0.0688 -0.0596)
OKLCH	oklch(60.84% 0.091 220.9)
XYZ	xyz(18.5565, 23.3197, 41.0516)
Luminance	0.2332 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378FA9 #A95137

analogous

#37A98A #378FA9 #3756A9

triadic

#378FA9 #A9378F #8FA937

tetradic

#378FA9 #8A37A9 #A95137 #56A937

square

#378FA9 #8A37A9 #A95137 #56A937

split-complementary

#378FA9 #A93756 #A98A37

monochromatic

#19414D #28687B #378FA9 #55AEC8 #84C4D7

Accessibility & contrast

On white

3.71

#378FA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#378FA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378FA9

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378FA9	#FFFFFF	#000000	##000000
##378FA9	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8BAA

Deuteranopia (green-blind)

#6F80A9

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378fa9;
/* rgb */ color: rgb(55, 143, 169);
/* oklch */ color: oklch(60.8% 0.091 220.9);

Tailwind

colors: {
  custom: {
    50: '#7cb0c2',
    500: '#378fa9',
    950: '#000000',
  },
}

SCSS

$custom: #378fa9;
$custom-light: #7cb0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#378fa9",
  "rgb": {
    "r": 55,
    "g": 143,
    "b": 169
  },
  "hsl": {
    "h": 193.684,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.60837,
    "c": 0.09104,
    "h": 220.9
  },
  "luminance": 0.23322
}

Semantic roles & 50–950 ramp

primary

#378FA9

secondary

#C08B7B

accent

#6E4DDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #378FA9

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

Preview Lab → · Contrast checker → · Palette generator →