#178A22#178A22

#178A22 is a mid, vivid green. Relative luminance 0.185; OKLCH L 55.3% C 0.170 H 143.8°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#178A22
RGB	rgb(23, 138, 34)
HSL	hsl(126, 71%, 32%)
HSV	hsv(126, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 75.4%, 45.9%)
CIE-LAB	lab(50.07, -50.87, 44.42)
CIE-LCH	lch(50.07, 67.53, 138.87°)
OKLab	oklab(55.29% -0.1376 0.1006)
OKLCH	oklch(55.29% 0.17 143.8)
XYZ	xyz(9.7299, 18.4734, 4.5660)
Luminance	0.1847 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A22 #8A177F

analogous

#468A17 #178A22 #178A5C

triadic

#178A22 #22178A #8A2217

tetradic

#178A22 #17468A #8A177F #8A5C17

square

#178A22 #17468A #8A177F #8A5C17

split-complementary

#178A22 #5C178A #8A1746

monochromatic

#062108 #0E5615 #178A22 #20BE2F #3DDF4C

Accessibility & contrast

On white

4.47

#178A22 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#178A22 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A22

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A22	#FFFFFF	#000000	##000000
##178A22	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C0E

Deuteranopia (green-blind)

#81742D

Tritanopia (blue-blind)

#008676

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a22;
/* rgb */ color: rgb(23, 138, 34);
/* oklch */ color: oklch(55.3% 0.170 143.8);

Tailwind

colors: {
  custom: {
    50: '#6cad64',
    500: '#178a22',
    950: '#000000',
  },
}

SCSS

$custom: #178a22;
$custom-light: #6cad64;
$custom-dark: #000000;

JSON

{
  "hex": "#178a22",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 34
  },
  "hsl": {
    "h": 125.739,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55288,
    "c": 0.17046,
    "h": 143.8
  },
  "luminance": 0.18475
}

Semantic roles & 50–950 ramp

primary

#178A22

secondary

#BE3FB2

accent

#3ADDEE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178A22

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

Preview Lab → · Contrast checker → · Palette generator →