#178DA0#178DA0

#178DA0 is a mid, moderate teal. Relative luminance 0.218; OKLCH L 59.2% C 0.099 H 212.0°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#178DA0
RGB	rgb(23, 141, 160)
HSL	hsl(188, 75%, 36%)
HSV	hsv(188, 86%, 63%)
CMYK	cmyk(85.6%, 11.9%, 0%, 37.3%)
CIE-LAB	lab(53.78, -23.44, -18.75)
CIE-LCH	lch(53.78, 30.01, 218.66°)
OKLab	oklab(59.23% -0.0836 -0.0523)
OKLCH	oklch(59.23% 0.099 212)
XYZ	xyz(16.2206, 21.7679, 36.5976)
Luminance	0.2177 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178DA0 #A02A17

analogous

#17A06E #178DA0 #1748A0

triadic

#178DA0 #A0178D #8DA017

tetradic

#178DA0 #6E17A0 #A02A17 #48A017

square

#178DA0 #6E17A0 #A02A17 #48A017

split-complementary

#178DA0 #A01748 #A06E17

monochromatic

#082F35 #0F5E6A #178DA0 #1FBCD6 #4CD0E5

Accessibility & contrast

On white

3.92

#178DA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#178DA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178DA0

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178DA0	#FFFFFF	#000000	##000000
##178DA0	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E88A1

Deuteranopia (green-blind)

#6D7BA0

Tritanopia (blue-blind)

#009593

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #178da0;
/* rgb */ color: rgb(23, 141, 160);
/* oklch */ color: oklch(59.2% 0.099 212.0);

Tailwind

colors: {
  custom: {
    50: '#71aebc',
    500: '#178da0',
    950: '#000000',
  },
}

SCSS

$custom: #178da0;
$custom-light: #71aebc;
$custom-dark: #000000;

JSON

{
  "hex": "#178da0",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 160
  },
  "hsl": {
    "h": 188.321,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.59232,
    "c": 0.09862,
    "h": 212
  },
  "luminance": 0.2177
}

Semantic roles & 50–950 ramp

primary

#178DA0

secondary

#C75D4C

accent

#5036F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #178DA0

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

Preview Lab → · Contrast checker → · Palette generator →