#178A53#178A53

#178A53 is a mid, vivid teal. Relative luminance 0.190; OKLCH L 56.0% C 0.129 H 155.9°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX#178A53
RGBrgb(23, 138, 83)
HSLhsl(151, 71%, 32%)
HSVhsv(151, 83%, 54%)
CMYKcmyk(83.3%, 0%, 39.9%, 45.9%)
CIE-LABlab(50.67, -43.68, 21.05)
CIE-LCHlch(50.67, 48.49, 154.27°)
OKLaboklab(55.98% -0.1177 0.0526)
OKLCHoklch(55.98% 0.129 155.9)
XYZxyz(11.0021, 18.9823, 11.2660)
Luminance0.1898 (WCAG relative)
Temperatureneutral
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#178A53 #8A174E
analogous
#178A19 #178A53 #17888A
triadic
#178A53 #53178A #8A5317
tetradic
#178A53 #19178A #8A174E #888A17
square
#178A53 #19178A #8A174E #888A17
split-complementary
#178A53 #8A1788 #8A1917
monochromatic
#062114 #0E5633 #178A53 #20BE73 #3DDF91

Accessibility & contrast

On white

4.38
#178A53 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.80
#178A53 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A53
4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##178A53#FFFFFF#000000##000000
##178A531.004.384.804.80
#FFFFFF4.381.0021.0021.00
#0000004.8021.001.001.00
##0000004.8021.001.001.00

Color blindness preview

Protanopia (red-blind)
#897E4F
Deuteranopia (green-blind)
#7C7557
Tritanopia (blue-blind)
#00897C
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #178a53;
/* rgb */ color: rgb(23, 138, 83);
/* oklch */ color: oklch(56.0% 0.129 155.9);
Tailwind
colors: {
  custom: {
    50: '#6aad84',
    500: '#178a53',
    950: '#000000',
  },
}
SCSS
$custom: #178a53;
$custom-light: #6aad84;
$custom-dark: #000000;
JSON
{
  "hex": "#178a53",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 83
  },
  "hsl": {
    "h": 151.304,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55981,
    "c": 0.12892,
    "h": 155.9
  },
  "luminance": 0.18984
}

Semantic roles & 50–950 ramp

primary
#178A53
secondary
#BE3F7C
accent
#3A90EE
background
#F6FAF8
surface
#ECF4EF
border
#C7CECA
text
#08100B
muted
#7A7F7C

Preview Lab

Preview with #178A53

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

Preview Lab → · Contrast checker → · Palette generator →

#178A53 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva