#178A1B#178A1B

#178A1B is a mid, vivid green. Relative luminance 0.184; OKLCH L 55.2% C 0.174 H 143.1°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#178A1B
RGB	rgb(23, 138, 27)
HSL	hsl(122, 71%, 32%)
HSV	hsv(122, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 80.4%, 45.9%)
CIE-LAB	lab(50.02, -51.41, 46.86)
CIE-LCH	lch(50.02, 69.56, 137.65°)
OKLab	oklab(55.24% -0.1394 0.1048)
OKLCH	oklch(55.24% 0.174 143.1)
XYZ	xyz(9.6390, 18.4371, 4.0874)
Luminance	0.1844 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A1B #8A1786

analogous

#4D8A17 #178A1B #178A55

triadic

#178A1B #1B178A #8A1B17

tetradic

#178A1B #174D8A #8A1786 #8A5517

square

#178A1B #174D8A #8A1786 #8A5517

split-complementary

#178A1B #55178A #8A174D

monochromatic

#062106 #0E5611 #178A1B #20BE25 #3DDF42

Accessibility & contrast

On white

4.48

#178A1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#178A1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A1B

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A1B	#FFFFFF	#000000	##000000
##178A1B	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C00

Deuteranopia (green-blind)

#817428

Tritanopia (blue-blind)

#008675

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a1b;
/* rgb */ color: rgb(23, 138, 27);
/* oklch */ color: oklch(55.2% 0.174 143.1);

Tailwind

colors: {
  custom: {
    50: '#6cad61',
    500: '#178a1b',
    950: '#000000',
  },
}

SCSS

$custom: #178a1b;
$custom-light: #6cad61;
$custom-dark: #000000;

JSON

{
  "hex": "#178a1b",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 27
  },
  "hsl": {
    "h": 122.087,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55238,
    "c": 0.17435,
    "h": 143.1
  },
  "luminance": 0.18438
}

Semantic roles & 50–950 ramp

primary

#178A1B

secondary

#BE3FB9

accent

#3AE8EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081005

muted

#7B7F7A

Preview Lab

Preview with #178A1B

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

Preview Lab → · Contrast checker → · Palette generator →