#178E9F#178E9F

#178E9F is a mid, moderate teal. Relative luminance 0.220; OKLCH L 59.4% C 0.098 H 210.2°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#178E9F
RGB	rgb(23, 142, 159)
HSL	hsl(188, 75%, 36%)
HSV	hsv(188, 86%, 62%)
CMYK	cmyk(85.5%, 10.7%, 0%, 37.6%)
CIE-LAB	lab(54.06, -24.29, -17.75)
CIE-LCH	lch(54.06, 30.08, 216.16°)
OKLab	oklab(59.44% -0.085 -0.0495)
OKLCH	oklch(59.44% 0.098 210.2)
XYZ	xyz(16.2816, 22.0293, 36.1881)
Luminance	0.2203 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E9F #9F2817

analogous

#179F6C #178E9F #174A9F

triadic

#178E9F #9F178E #8E9F17

tetradic

#178E9F #6C179F #9F2817 #4A9F17

square

#178E9F #6C179F #9F2817 #4A9F17

split-complementary

#178E9F #9F174A #9F6C17

monochromatic

#082E34 #0F5E6A #178E9F #1FBED4 #4BD2E5

Accessibility & contrast

On white

3.88

#178E9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#178E9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E9F

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E9F	#FFFFFF	#000000	##000000
##178E9F	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)

#8088A0

Deuteranopia (green-blind)

#6E7C9F

Tritanopia (blue-blind)

#009593

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #178e9f;
/* rgb */ color: rgb(23, 142, 159);
/* oklch */ color: oklch(59.4% 0.098 210.2);

Tailwind

colors: {
  custom: {
    50: '#70afbb',
    500: '#178e9f',
    950: '#000000',
  },
}

SCSS

$custom: #178e9f;
$custom-light: #70afbb;
$custom-dark: #000000;

JSON

{
  "hex": "#178e9f",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 159
  },
  "hsl": {
    "h": 187.5,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.59444,
    "c": 0.09835,
    "h": 210.2
  },
  "luminance": 0.22031
}

Semantic roles & 50–950 ramp

primary

#178E9F

secondary

#C75B4B

accent

#4E36F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #178E9F

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

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