#378C99#378C99

#378C99 is a mid, moderate teal. Relative luminance 0.219; OKLCH L 59.4% C 0.083 H 209.1°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#378C99
RGB	rgb(55, 140, 153)
HSL	hsl(188, 47%, 41%)
HSV	hsv(188, 64%, 60%)
CMYK	cmyk(64.1%, 8.5%, 0%, 40%)
CIE-LAB	lab(53.89, -21.18, -14.49)
CIE-LCH	lch(53.89, 25.66, 214.38°)
OKLab	oklab(59.43% -0.0722 -0.0402)
OKLCH	oklch(59.43% 0.083 209.1)
XYZ	xyz(16.7010, 21.8665, 33.4713)
Luminance	0.2187 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378C99 #994437

analogous

#379975 #378C99 #375B99

triadic

#378C99 #99378C #8C9937

tetradic

#378C99 #753799 #994437 #5B9937

square

#378C99 #753799 #994437 #5B9937

split-complementary

#378C99 #99375B #997537

monochromatic

#173A3F #27636C #378C99 #4EB0BF #7BC4D0

Accessibility & contrast

On white

3.91

#378C99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#378C99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378C99

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378C99	#FFFFFF	#000000	##000000
##378C99	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80879A

Deuteranopia (green-blind)

#727C99

Tritanopia (blue-blind)

#009290

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378c99;
/* rgb */ color: rgb(55, 140, 153);
/* oklch */ color: oklch(59.4% 0.083 209.1);

Tailwind

colors: {
  custom: {
    50: '#7aaeb7',
    500: '#378c99',
    950: '#000000',
  },
}

SCSS

$custom: #378c99;
$custom-light: #7aaeb7;
$custom-dark: #000000;

JSON

{
  "hex": "#378c99",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 153
  },
  "hsl": {
    "h": 187.959,
    "s": 47.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.59425,
    "c": 0.08258,
    "h": 209.1
  },
  "luminance": 0.21868
}

Semantic roles & 50–950 ramp

primary

#378C99

secondary

#B97C73

accent

#6351D7

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #378C99

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

Preview Lab → · Contrast checker → · Palette generator →