#178CA0#178CA0

#178CA0 is a mid, moderate teal. Relative luminance 0.215; OKLCH L 59.0% C 0.099 H 213.0°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#178CA0
RGB	rgb(23, 140, 160)
HSL	hsl(189, 75%, 36%)
HSV	hsv(189, 86%, 63%)
CMYK	cmyk(85.6%, 12.5%, 0%, 37.3%)
CIE-LAB	lab(53.46, -22.92, -19.23)
CIE-LCH	lch(53.46, 29.91, 220.00°)
OKLab	oklab(58.98% -0.0826 -0.0537)
OKLCH	oklch(58.98% 0.099 213)
XYZ	xyz(16.0738, 21.4743, 36.5487)
Luminance	0.2148 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178CA0 #A02B17

analogous

#17A06F #178CA0 #1747A0

triadic

#178CA0 #A0178C #8CA017

tetradic

#178CA0 #6F17A0 #A02B17 #47A017

square

#178CA0 #6F17A0 #A02B17 #47A017

split-complementary

#178CA0 #A01747 #A06F17

monochromatic

#082E35 #0F5D6A #178CA0 #1FBBD6 #4CCFE5

Accessibility & contrast

On white

3.97

#178CA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#178CA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178CA0

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178CA0	#FFFFFF	#000000	##000000
##178CA0	1.00	3.97	5.30	5.30
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D87A1

Deuteranopia (green-blind)

#6C7AA0

Tritanopia (blue-blind)

#009492

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #178ca0;
/* rgb */ color: rgb(23, 140, 160);
/* oklch */ color: oklch(59.0% 0.099 213.0);

Tailwind

colors: {
  custom: {
    50: '#70aebc',
    500: '#178ca0',
    950: '#000000',
  },
}

SCSS

$custom: #178ca0;
$custom-light: #70aebc;
$custom-dark: #000000;

JSON

{
  "hex": "#178ca0",
  "rgb": {
    "r": 23,
    "g": 140,
    "b": 160
  },
  "hsl": {
    "h": 188.759,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.58977,
    "c": 0.09854,
    "h": 213
  },
  "luminance": 0.21476
}

Semantic roles & 50–950 ramp

primary

#178CA0

secondary

#C75E4C

accent

#5236F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #178CA0

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

Preview Lab → · Contrast checker → · Palette generator →