#378BAB#378BAB

#378BAB is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 59.9% C 0.093 H 226.8°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#378BAB
RGB	rgb(55, 139, 171)
HSL	hsl(197, 51%, 44%)
HSV	hsv(197, 68%, 67%)
CMYK	cmyk(67.8%, 18.7%, 0%, 32.9%)
CIE-LAB	lab(54.26, -14.87, -24.29)
CIE-LCH	lch(54.26, 28.48, 238.53°)
OKLab	oklab(59.95% -0.0638 -0.0679)
OKLCH	oklch(59.95% 0.093 226.8)
XYZ	xyz(18.1559, 22.2158, 41.8514)
Luminance	0.2222 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BAB #AB5737

analogous

#37AB91 #378BAB #3751AB

triadic

#378BAB #AB378B #8BAB37

tetradic

#378BAB #9137AB #AB5737 #51AB37

square

#378BAB #9137AB #AB5737 #51AB37

split-complementary

#378BAB #AB3751 #AB9137

monochromatic

#19404E #28657D #378BAB #56A9C9 #85C1D8

Accessibility & contrast

On white

3.86

#378BAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#378BAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BAB

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BAB	#FFFFFF	#000000	##000000
##378BAB	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A88AD

Deuteranopia (green-blind)

#6A7DAB

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378bab;
/* rgb */ color: rgb(55, 139, 171);
/* oklch */ color: oklch(59.9% 0.093 226.8);

Tailwind

colors: {
  custom: {
    50: '#7cadc4',
    500: '#378bab',
    950: '#000000',
  },
}

SCSS

$custom: #378bab;
$custom-light: #7cadc4;
$custom-dark: #000000;

JSON

{
  "hex": "#378bab",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 171
  },
  "hsl": {
    "h": 196.552,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.59946,
    "c": 0.09318,
    "h": 226.8
  },
  "luminance": 0.22218
}

Semantic roles & 50–950 ramp

primary

#378BAB

secondary

#C18F7C

accent

#744DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378BAB

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

Preview Lab → · Contrast checker → · Palette generator →