#378E9B#378E9B

#378E9B is a mid, moderate teal. Relative luminance 0.225; OKLCH L 60.0% C 0.084 H 208.8°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#378E9B
RGB	rgb(55, 142, 155)
HSL	hsl(188, 48%, 41%)
HSV	hsv(188, 65%, 61%)
CMYK	cmyk(64.5%, 8.4%, 0%, 39.2%)
CIE-LAB	lab(54.58, -21.61, -14.59)
CIE-LCH	lch(54.58, 26.07, 214.04°)
OKLab	oklab(60.01% -0.0735 -0.0405)
OKLCH	oklch(60.01% 0.084 208.8)
XYZ	xyz(17.1625, 22.5230, 34.4469)
Luminance	0.2253 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378E9B #9B4437

analogous

#379B76 #378E9B #375C9B

triadic

#378E9B #9B378E #8E9B37

tetradic

#378E9B #76379B #9B4437 #5C9B37

square

#378E9B #76379B #9B4437 #5C9B37

split-complementary

#378E9B #9B375C #9B7637

monochromatic

#173B41 #27656E #378E9B #4FB2C0 #7CC5D0

Accessibility & contrast

On white

3.81

#378E9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#378E9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378E9B

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378E9B	#FFFFFF	#000000	##000000
##378E9B	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82899C

Deuteranopia (green-blind)

#737E9B

Tritanopia (blue-blind)

#009492

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378e9b;
/* rgb */ color: rgb(55, 142, 155);
/* oklch */ color: oklch(60.0% 0.084 208.8);

Tailwind

colors: {
  custom: {
    50: '#7aafb8',
    500: '#378e9b',
    950: '#000000',
  },
}

SCSS

$custom: #378e9b;
$custom-light: #7aafb8;
$custom-dark: #000000;

JSON

{
  "hex": "#378e9b",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 155
  },
  "hsl": {
    "h": 187.8,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.60006,
    "c": 0.0839,
    "h": 208.8
  },
  "luminance": 0.22525
}

Semantic roles & 50–950 ramp

primary

#378E9B

secondary

#BA7D74

accent

#6251D7

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #378E9B

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

Preview Lab → · Contrast checker → · Palette generator →