#178A98#178A98

#178A98 is a mid, moderate teal. Relative luminance 0.206; OKLCH L 58.1% C 0.095 H 208.0°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX#178A98
RGBrgb(23, 138, 152)
HSLhsl(187, 74%, 34%)
HSVhsv(187, 85%, 60%)
CMYKcmyk(84.9%, 9.2%, 0%, 40.4%)
CIE-LABlab(52.54, -24.57, -16.02)
CIE-LCHlch(52.54, 29.33, 213.10°)
OKLaboklab(58.13% -0.0841 -0.0446)
OKLCHoklch(58.13% 0.095 208)
XYZxyz(15.1068, 20.6242, 32.8843)
Luminance0.2063 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#178A98 #982517
analogous
#179866 #178A98 #174998
triadic
#178A98 #98178A #8A9817
tetradic
#178A98 #661798 #982517 #499817
square
#178A98 #661798 #982517 #499817
split-complementary
#178A98 #981749 #986617
monochromatic
#07292E #0F5A63 #178A98 #1FBACD #46D2E3

Accessibility & contrast

On white

4.10
#178A98 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.13
#178A98 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A98
5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##178A98#FFFFFF#000000##000000
##178A981.004.105.135.13
#FFFFFF4.101.0021.0021.00
#0000005.1321.001.001.00
##0000005.1321.001.001.00

Color blindness preview

Protanopia (red-blind)
#7D8499
Deuteranopia (green-blind)
#6C7898
Tritanopia (blue-blind)
#00918E
Achromatopsia (no color)
#7D7D7D

Design tokens & code

CSS
--color: #178a98;
/* rgb */ color: rgb(23, 138, 152);
/* oklch */ color: oklch(58.1% 0.095 208.0);
Tailwind
colors: {
  custom: {
    50: '#6facb6',
    500: '#178a98',
    950: '#000000',
  },
}
SCSS
$custom: #178a98;
$custom-light: #6facb6;
$custom-dark: #000000;
JSON
{
  "hex": "#178a98",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 152
  },
  "hsl": {
    "h": 186.512,
    "s": 73.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.58128,
    "c": 0.09521,
    "h": 208
  },
  "luminance": 0.20626
}

Semantic roles & 50–950 ramp

primary
#178A98
secondary
#C45447
accent
#4B37F0
background
#F7FAFB
surface
#EDF4F6
border
#C8CED0
text
#091011
muted
#7B7F80

Preview Lab

Preview with #178A98

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

Preview Lab → · Contrast checker → · Palette generator →

#178A98 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva