#178A2A#178A2A

#178A2A is a mid, vivid green. Relative luminance 0.185; OKLCH L 55.4% C 0.165 H 144.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#178A2A
RGB	rgb(23, 138, 42)
HSL	hsl(130, 71%, 32%)
HSV	hsv(130, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 69.6%, 45.9%)
CIE-LAB	lab(50.13, -50.10, 41.24)
CIE-LCH	lch(50.13, 64.89, 140.54°)
OKLab	oklab(55.36% -0.1351 0.095)
OKLCH	oklch(55.36% 0.165 144.9)
XYZ	xyz(9.8590, 18.5251, 5.2461)
Luminance	0.1853 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A2A #8A1777

analogous

#3E8A17 #178A2A #178A64

triadic

#178A2A #2A178A #8A2A17

tetradic

#178A2A #173E8A #8A1777 #8A6417

square

#178A2A #173E8A #8A1777 #8A6417

split-complementary

#178A2A #64178A #8A173E

monochromatic

#06210A #0E561A #178A2A #20BE3A #3DDF58

Accessibility & contrast

On white

4.46

#178A2A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#178A2A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A2A

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A2A	#FFFFFF	#000000	##000000
##178A2A	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7C1D

Deuteranopia (green-blind)

#807433

Tritanopia (blue-blind)

#008676

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a2a;
/* rgb */ color: rgb(23, 138, 42);
/* oklch */ color: oklch(55.4% 0.165 144.9);

Tailwind

colors: {
  custom: {
    50: '#6bad69',
    500: '#178a2a',
    950: '#000000',
  },
}

SCSS

$custom: #178a2a;
$custom-light: #6bad69;
$custom-dark: #000000;

JSON

{
  "hex": "#178a2a",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 42
  },
  "hsl": {
    "h": 129.913,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55359,
    "c": 0.16518,
    "h": 144.9
  },
  "luminance": 0.18526
}

Semantic roles & 50–950 ramp

primary

#178A2A

secondary

#BE3FA9

accent

#3AD0EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178A2A

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

Preview Lab → · Contrast checker → · Palette generator →