#178EA0#178EA0

#178EA0 is a mid, moderate teal. Relative luminance 0.221; OKLCH L 59.5% C 0.099 H 211.1°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#178EA0
RGB	rgb(23, 142, 160)
HSL	hsl(188, 75%, 36%)
HSV	hsv(188, 86%, 63%)
CMYK	cmyk(85.6%, 11.2%, 0%, 37.3%)
CIE-LAB	lab(54.09, -23.95, -18.27)
CIE-LCH	lch(54.09, 30.12, 217.33°)
OKLab	oklab(59.49% -0.0846 -0.051)
OKLCH	oklch(59.49% 0.099 211.1)
XYZ	xyz(16.3687, 22.0641, 36.6470)
Luminance	0.2207 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178EA0 #A02917

analogous

#17A06D #178EA0 #1749A0

triadic

#178EA0 #A0178E #8EA017

tetradic

#178EA0 #6D17A0 #A02917 #49A017

square

#178EA0 #6D17A0 #A02917 #49A017

split-complementary

#178EA0 #A01749 #A06D17

monochromatic

#082F35 #0F5F6A #178EA0 #1FBDD6 #4CD1E5

Accessibility & contrast

On white

3.88

#178EA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#178EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178EA0

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178EA0	#FFFFFF	#000000	##000000
##178EA0	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F89A1

Deuteranopia (green-blind)

#6E7CA0

Tritanopia (blue-blind)

#009693

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #178ea0;
/* rgb */ color: rgb(23, 142, 160);
/* oklch */ color: oklch(59.5% 0.099 211.1);

Tailwind

colors: {
  custom: {
    50: '#71afbc',
    500: '#178ea0',
    950: '#000000',
  },
}

SCSS

$custom: #178ea0;
$custom-light: #71afbc;
$custom-dark: #000000;

JSON

{
  "hex": "#178ea0",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 160
  },
  "hsl": {
    "h": 187.883,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.59486,
    "c": 0.09873,
    "h": 211.1
  },
  "luminance": 0.22066
}

Semantic roles & 50–950 ramp

primary

#178EA0

secondary

#C75C4C

accent

#4F36F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #178EA0

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

Preview Lab → · Contrast checker → · Palette generator →