#178E1B#178E1B

#178E1B is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.4% C 0.179 H 143.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#178E1B
RGB	rgb(23, 142, 27)
HSL	hsl(122, 72%, 32%)
HSV	hsv(122, 84%, 56%)
CMYK	cmyk(83.8%, 0%, 81%, 44.3%)
CIE-LAB	lab(51.39, -52.68, 48.17)
CIE-LCH	lch(51.39, 71.39, 137.56°)
OKLab	oklab(56.38% -0.1428 0.1075)
OKLCH	oklch(56.38% 0.179 143)
XYZ	xyz(10.2235, 19.6060, 4.2822)
Luminance	0.1961 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E1B #8E178A

analogous

#4E8E17 #178E1B #178E57

triadic

#178E1B #1B178E #8E1B17

tetradic

#178E1B #174E8E #8E178A #8E5717

square

#178E1B #174E8E #8E178A #8E5717

split-complementary

#178E1B #57178E #8E174E

monochromatic

#062507 #0E5911 #178E1B #20C325 #3FE045

Accessibility & contrast

On white

4.27

#178E1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#178E1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E1B

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E1B	#FFFFFF	#000000	##000000
##178E1B	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918000

Deuteranopia (green-blind)

#857729

Tritanopia (blue-blind)

#008A79

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178e1b;
/* rgb */ color: rgb(23, 142, 27);
/* oklch */ color: oklch(56.4% 0.179 143.0);

Tailwind

colors: {
  custom: {
    50: '#6db061',
    500: '#178e1b',
    950: '#000000',
  },
}

SCSS

$custom: #178e1b;
$custom-light: #6db061;
$custom-dark: #000000;

JSON

{
  "hex": "#178e1b",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 27
  },
  "hsl": {
    "h": 122.017,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56376,
    "c": 0.17875,
    "h": 143
  },
  "luminance": 0.19607
}

Semantic roles & 50–950 ramp

primary

#178E1B

secondary

#C040BC

accent

#39E9EF

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#081105

muted

#7B807A

Preview Lab

Preview with #178E1B

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

Preview Lab → · Contrast checker → · Palette generator →