#178AA0#178AA0

#178AA0 is a mid, moderate teal. Relative luminance 0.209; OKLCH L 58.5% C 0.098 H 215.0°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#178AA0
RGB	rgb(23, 138, 160)
HSL	hsl(190, 75%, 36%)
HSV	hsv(190, 86%, 63%)
CMYK	cmyk(85.6%, 13.8%, 0%, 37.3%)
CIE-LAB	lab(52.83, -21.87, -20.19)
CIE-LCH	lch(52.83, 29.77, 222.72°)
OKLab	oklab(58.47% -0.0807 -0.0564)
OKLCH	oklch(58.47% 0.098 215)
XYZ	xyz(15.7842, 20.8952, 36.4521)
Luminance	0.2090 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178AA0 #A02D17

analogous

#17A071 #178AA0 #1745A0

triadic

#178AA0 #A0178A #8AA017

tetradic

#178AA0 #7117A0 #A02D17 #45A017

square

#178AA0 #7117A0 #A02D17 #45A017

split-complementary

#178AA0 #A01745 #A07117

monochromatic

#082E35 #0F5C6A #178AA0 #1FB8D6 #4CCDE5

Accessibility & contrast

On white

4.05

#178AA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#178AA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178AA0

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178AA0	#FFFFFF	#000000	##000000
##178AA0	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B85A1

Deuteranopia (green-blind)

#6979A0

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #178aa0;
/* rgb */ color: rgb(23, 138, 160);
/* oklch */ color: oklch(58.5% 0.098 215.0);

Tailwind

colors: {
  custom: {
    50: '#70acbc',
    500: '#178aa0',
    950: '#000000',
  },
}

SCSS

$custom: #178aa0;
$custom-light: #70acbc;
$custom-dark: #000000;

JSON

{
  "hex": "#178aa0",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 160
  },
  "hsl": {
    "h": 189.635,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.58469,
    "c": 0.09846,
    "h": 215
  },
  "luminance": 0.20897
}

Semantic roles & 50–950 ramp

primary

#178AA0

secondary

#C7604C

accent

#5436F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #178AA0

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

Preview Lab → · Contrast checker → · Palette generator →