#178E9E#178E9E

#178E9E is a mid, moderate teal. Relative luminance 0.220; OKLCH L 59.4% C 0.098 H 209.4°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#178E9E
RGB	rgb(23, 142, 158)
HSL	hsl(187, 75%, 35%)
HSV	hsv(187, 85%, 62%)
CMYK	cmyk(85.4%, 10.1%, 0%, 38%)
CIE-LAB	lab(54.02, -24.62, -17.23)
CIE-LCH	lch(54.02, 30.05, 214.98°)
OKLab	oklab(59.4% -0.0854 -0.048)
OKLCH	oklch(59.4% 0.098 209.4)
XYZ	xyz(16.1952, 21.9947, 35.7330)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E9E #9E2717

analogous

#179E6A #178E9E #174A9E

triadic

#178E9E #9E178E #8E9E17

tetradic

#178E9E #6A179E #9E2717 #4A9E17

square

#178E9E #6A179E #9E2717 #4A9E17

split-complementary

#178E9E #9E174A #9E6A17

monochromatic

#072E33 #0F5E69 #178E9E #1FBED3 #4BD2E5

Accessibility & contrast

On white

3.89

#178E9E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#178E9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E9E

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E9E	#FFFFFF	#000000	##000000
##178E9E	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80889F

Deuteranopia (green-blind)

#6F7C9E

Tritanopia (blue-blind)

#009593

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #178e9e;
/* rgb */ color: rgb(23, 142, 158);
/* oklch */ color: oklch(59.4% 0.098 209.4);

Tailwind

colors: {
  custom: {
    50: '#70afba',
    500: '#178e9e',
    950: '#000000',
  },
}

SCSS

$custom: #178e9e;
$custom-light: #70afba;
$custom-dark: #000000;

JSON

{
  "hex": "#178e9e",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 158
  },
  "hsl": {
    "h": 187.111,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.59402,
    "c": 0.09799,
    "h": 209.4
  },
  "luminance": 0.21997
}

Semantic roles & 50–950 ramp

primary

#178E9E

secondary

#C6594A

accent

#4D37F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #178E9E

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

Preview Lab → · Contrast checker → · Palette generator →