#378D9B#378D9B

#378D9B is a mid, moderate teal. Relative luminance 0.222; OKLCH L 59.8% C 0.084 H 210.0°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#378D9B
RGB	rgb(55, 141, 155)
HSL	hsl(188, 48%, 41%)
HSV	hsv(188, 65%, 61%)
CMYK	cmyk(64.5%, 9%, 0%, 39.2%)
CIE-LAB	lab(54.27, -21.08, -15.06)
CIE-LCH	lch(54.27, 25.91, 215.55°)
OKLab	oklab(59.76% -0.0724 -0.0418)
OKLCH	oklch(59.76% 0.084 210)
XYZ	xyz(17.0143, 22.2267, 34.3975)
Luminance	0.2223 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378D9B #9B4537

analogous

#379B77 #378D9B #375B9B

triadic

#378D9B #9B378D #8D9B37

tetradic

#378D9B #77379B #9B4537 #5B9B37

square

#378D9B #77379B #9B4537 #5B9B37

split-complementary

#378D9B #9B375B #9B7737

monochromatic

#173B41 #27646E #378D9B #4FB1C0 #7CC5D0

Accessibility & contrast

On white

3.86

#378D9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#378D9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378D9B

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378D9B	#FFFFFF	#000000	##000000
##378D9B	1.00	3.86	5.45	5.45
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81889C

Deuteranopia (green-blind)

#727D9B

Tritanopia (blue-blind)

#009391

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378d9b;
/* rgb */ color: rgb(55, 141, 155);
/* oklch */ color: oklch(59.8% 0.084 210.0);

Tailwind

colors: {
  custom: {
    50: '#7aaeb8',
    500: '#378d9b',
    950: '#000000',
  },
}

SCSS

$custom: #378d9b;
$custom-light: #7aaeb8;
$custom-dark: #000000;

JSON

{
  "hex": "#378d9b",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 155
  },
  "hsl": {
    "h": 188.4,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.59755,
    "c": 0.0836,
    "h": 210
  },
  "luminance": 0.22229
}

Semantic roles & 50–950 ramp

primary

#378D9B

secondary

#BA7E74

accent

#6351D7

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #378D9B

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

Preview Lab → · Contrast checker → · Palette generator →