#378EA9#378EA9

#378EA9 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.6% C 0.091 H 222.0°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#378EA9
RGB	rgb(55, 142, 169)
HSL	hsl(194, 51%, 44%)
HSV	hsv(194, 67%, 66%)
CMYK	cmyk(67.5%, 16%, 0%, 33.7%)
CIE-LAB	lab(55.09, -17.16, -21.85)
CIE-LCH	lch(55.09, 27.78, 231.86°)
OKLab	oklab(60.59% -0.0677 -0.061)
OKLCH	oklch(60.59% 0.091 222)
XYZ	xyz(18.4071, 23.0208, 41.0018)
Luminance	0.2302 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EA9 #A95237

analogous

#37A98B #378EA9 #3755A9

triadic

#378EA9 #A9378E #8EA937

tetradic

#378EA9 #8B37A9 #A95237 #55A937

square

#378EA9 #8B37A9 #A95237 #55A937

split-complementary

#378EA9 #A93755 #A98B37

monochromatic

#19404D #28677B #378EA9 #55ADC8 #84C3D7

Accessibility & contrast

On white

3.75

#378EA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#378EA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EA9

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EA9	#FFFFFF	#000000	##000000
##378EA9	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAA

Deuteranopia (green-blind)

#6E7FA9

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378ea9;
/* rgb */ color: rgb(55, 142, 169);
/* oklch */ color: oklch(60.6% 0.091 222.0);

Tailwind

colors: {
  custom: {
    50: '#7cafc2',
    500: '#378ea9',
    950: '#000000',
  },
}

SCSS

$custom: #378ea9;
$custom-light: #7cafc2;
$custom-dark: #000000;

JSON

{
  "hex": "#378ea9",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 169
  },
  "hsl": {
    "h": 194.211,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.60591,
    "c": 0.09113,
    "h": 222
  },
  "luminance": 0.23023
}

Semantic roles & 50–950 ramp

primary

#378EA9

secondary

#C08C7B

accent

#6F4DDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378EA9

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

Preview Lab → · Contrast checker → · Palette generator →