#378BA9#378BA9

#378BA9 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.9% C 0.092 H 225.2°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#378BA9
RGB	rgb(55, 139, 169)
HSL	hsl(196, 51%, 44%)
HSV	hsv(196, 67%, 66%)
CMYK	cmyk(67.5%, 17.8%, 0%, 33.7%)
CIE-LAB	lab(54.18, -15.53, -23.26)
CIE-LCH	lch(54.18, 27.97, 236.28°)
OKLab	oklab(59.86% -0.0645 -0.065)
OKLCH	oklch(59.86% 0.092 225.2)
XYZ	xyz(17.9667, 22.1401, 40.8550)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BA9 #A95537

analogous

#37A98E #378BA9 #3752A9

triadic

#378BA9 #A9378B #8BA937

tetradic

#378BA9 #8E37A9 #A95537 #52A937

square

#378BA9 #8E37A9 #A95537 #52A937

split-complementary

#378BA9 #A93752 #A98E37

monochromatic

#193F4D #28657B #378BA9 #55AAC8 #84C1D7

Accessibility & contrast

On white

3.87

#378BA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#378BA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BA9

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BA9	#FFFFFF	#000000	##000000
##378BA9	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A88AB

Deuteranopia (green-blind)

#6B7CA9

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378ba9;
/* rgb */ color: rgb(55, 139, 169);
/* oklch */ color: oklch(59.9% 0.092 225.2);

Tailwind

colors: {
  custom: {
    50: '#7badc2',
    500: '#378ba9',
    950: '#000000',
  },
}

SCSS

$custom: #378ba9;
$custom-light: #7badc2;
$custom-dark: #000000;

JSON

{
  "hex": "#378ba9",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 169
  },
  "hsl": {
    "h": 195.789,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.59856,
    "c": 0.09161,
    "h": 225.2
  },
  "luminance": 0.22142
}

Semantic roles & 50–950 ramp

primary

#378BA9

secondary

#C08E7B

accent

#734DDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378BA9

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

Preview Lab → · Contrast checker → · Palette generator →