#178D1B#178D1B

#178D1B is a mid, vivid green. Relative luminance 0.193; OKLCH L 56.1% C 0.178 H 143.0°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#178D1B
RGB	rgb(23, 141, 27)
HSL	hsl(122, 72%, 32%)
HSV	hsv(122, 84%, 55%)
CMYK	cmyk(83.7%, 0%, 80.9%, 44.7%)
CIE-LAB	lab(51.05, -52.36, 47.85)
CIE-LCH	lch(51.05, 70.93, 137.58°)
OKLab	oklab(56.09% -0.142 0.1068)
OKLCH	oklch(56.09% 0.178 143)
XYZ	xyz(10.0754, 19.3098, 4.2329)
Luminance	0.1931 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178D1B #8D1789

analogous

#4E8D17 #178D1B #178D56

triadic

#178D1B #1B178D #8D1B17

tetradic

#178D1B #174E8D #8D1789 #8D5617

square

#178D1B #174E8D #8D1789 #8D5617

split-complementary

#178D1B #56178D #8D174E

monochromatic

#062407 #0E5811 #178D1B #20C225 #3FE044

Accessibility & contrast

On white

4.32

#178D1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#178D1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178D1B

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178D1B	#FFFFFF	#000000	##000000
##178D1B	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#907F00

Deuteranopia (green-blind)

#847629

Tritanopia (blue-blind)

#008978

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178d1b;
/* rgb */ color: rgb(23, 141, 27);
/* oklch */ color: oklch(56.1% 0.178 143.0);

Tailwind

colors: {
  custom: {
    50: '#6db061',
    500: '#178d1b',
    950: '#000000',
  },
}

SCSS

$custom: #178d1b;
$custom-light: #6db061;
$custom-dark: #000000;

JSON

{
  "hex": "#178d1b",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 27
  },
  "hsl": {
    "h": 122.034,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.56092,
    "c": 0.17765,
    "h": 143
  },
  "luminance": 0.19311
}

Semantic roles & 50–950 ramp

primary

#178D1B

secondary

#C040BC

accent

#39E9EF

background

#F7FAF6

surface

#EDF5EB

border

#C8CFC6

text

#081105

muted

#7B807A

Preview Lab

Preview with #178D1B

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

Preview Lab → · Contrast checker → · Palette generator →