#178A51#178A51

#178A51 is a mid, vivid teal. Relative luminance 0.190; OKLCH L 55.9% C 0.131 H 155.1°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX#178A51
RGBrgb(23, 138, 81)
HSLhsl(150, 71%, 32%)
HSVhsv(150, 83%, 54%)
CMYKcmyk(83.3%, 0%, 41.3%, 45.9%)
CIE-LABlab(50.63, -44.09, 22.11)
CIE-LCHlch(50.63, 49.32, 153.36°)
OKLaboklab(55.94% -0.1187 0.0551)
OKLCHoklch(55.94% 0.131 155.1)
XYZxyz(10.9260, 18.9518, 10.8652)
Luminance0.1895 (WCAG relative)
Temperatureneutral
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#178A51 #8A1750
analogous
#178A18 #178A51 #178A8A
triadic
#178A51 #51178A #8A5117
tetradic
#178A51 #18178A #8A1750 #8A8A17
square
#178A51 #18178A #8A1750 #8A8A17
split-complementary
#178A51 #8A178A #8A1817
monochromatic
#062113 #0E5632 #178A51 #20BE70 #3DDF8E

Accessibility & contrast

On white

4.38
#178A51 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.79
#178A51 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A51
4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##178A51#FFFFFF#000000##000000
##178A511.004.384.794.79
#FFFFFF4.381.0021.0021.00
#0000004.7921.001.001.00
##0000004.7921.001.001.00

Color blindness preview

Protanopia (red-blind)
#897E4D
Deuteranopia (green-blind)
#7C7555
Tritanopia (blue-blind)
#00887C
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #178a51;
/* rgb */ color: rgb(23, 138, 81);
/* oklch */ color: oklch(55.9% 0.131 155.1);
Tailwind
colors: {
  custom: {
    50: '#6aad82',
    500: '#178a51',
    950: '#000000',
  },
}
SCSS
$custom: #178a51;
$custom-light: #6aad82;
$custom-dark: #000000;
JSON
{
  "hex": "#178a51",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 81
  },
  "hsl": {
    "h": 150.261,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.5594,
    "c": 0.13085,
    "h": 155.1
  },
  "luminance": 0.18953
}

Semantic roles & 50–950 ramp

primary
#178A51
secondary
#BE3F7E
accent
#3A93EE
background
#F6FAF8
surface
#ECF4EF
border
#C7CECA
text
#08100A
muted
#7A7F7C

Preview Lab

Preview with #178A51

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

Preview Lab → · Contrast checker → · Palette generator →

#178A51 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva