#178A28#178A28

#178A28 is a mid, vivid green. Relative luminance 0.185; OKLCH L 55.3% C 0.167 H 144.6°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#178A28
RGB	rgb(23, 138, 40)
HSL	hsl(129, 71%, 32%)
HSV	hsv(129, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 71%, 45.9%)
CIE-LAB	lab(50.11, -50.31, 42.07)
CIE-LCH	lch(50.11, 65.58, 140.10°)
OKLab	oklab(55.34% -0.1358 0.0965)
OKLCH	oklch(55.34% 0.167 144.6)
XYZ	xyz(9.8241, 18.5111, 5.0623)
Luminance	0.1851 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A28 #8A1779

analogous

#3F8A17 #178A28 #178A62

triadic

#178A28 #28178A #8A2817

tetradic

#178A28 #173F8A #8A1779 #8A6217

square

#178A28 #173F8A #8A1779 #8A6217

split-complementary

#178A28 #62178A #8A173F

monochromatic

#06210A #0E5619 #178A28 #20BE37 #3DDF55

Accessibility & contrast

On white

4.47

#178A28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#178A28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A28

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A28	#FFFFFF	#000000	##000000
##178A28	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)

#8D7C1A

Deuteranopia (green-blind)

#807432

Tritanopia (blue-blind)

#008676

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a28;
/* rgb */ color: rgb(23, 138, 40);
/* oklch */ color: oklch(55.3% 0.167 144.6);

Tailwind

colors: {
  custom: {
    50: '#6cad67',
    500: '#178a28',
    950: '#000000',
  },
}

SCSS

$custom: #178a28;
$custom-light: #6cad67;
$custom-dark: #000000;

JSON

{
  "hex": "#178a28",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 40
  },
  "hsl": {
    "h": 128.87,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.5534,
    "c": 0.16658,
    "h": 144.6
  },
  "luminance": 0.18512
}

Semantic roles & 50–950 ramp

primary

#178A28

secondary

#BE3FAB

accent

#3AD3EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178A28

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

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