#178B1F#178B1F

#178B1F is a mid, vivid green. Relative luminance 0.187; OKLCH L 55.5% C 0.173 H 143.5°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#178B1F
RGB	rgb(23, 139, 31)
HSL	hsl(124, 72%, 32%)
HSV	hsv(124, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(50.39, -51.44, 45.85)
CIE-LCH	lch(50.39, 68.90, 138.29°)
OKLab	oklab(55.55% -0.1393 0.1032)
OKLCH	oklch(55.55% 0.173 143.5)
XYZ	xyz(9.8326, 18.7451, 4.3960)
Luminance	0.1875 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B1F #8B1783

analogous

#498B17 #178B1F #178B59

triadic

#178B1F #1F178B #8B1F17

tetradic

#178B1F #17498B #8B1783 #8B5917

square

#178B1F #17498B #8B1783 #8B5917

split-complementary

#178B1F #59178B #8B1749

monochromatic

#062208 #0E5613 #178B1F #20C02B #3DDF49

Accessibility & contrast

On white

4.42

#178B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#178B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B1F

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B1F	#FFFFFF	#000000	##000000
##178B1F	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7D06

Deuteranopia (green-blind)

#82752B

Tritanopia (blue-blind)

#008776

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #178b1f;
/* rgb */ color: rgb(23, 139, 31);
/* oklch */ color: oklch(55.5% 0.173 143.5);

Tailwind

colors: {
  custom: {
    50: '#6cae63',
    500: '#178b1f',
    950: '#000000',
  },
}

SCSS

$custom: #178b1f;
$custom-light: #6cae63;
$custom-dark: #000000;

JSON

{
  "hex": "#178b1f",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 124.138,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.5555,
    "c": 0.17334,
    "h": 143.5
  },
  "luminance": 0.18746
}

Semantic roles & 50–950 ramp

primary

#178B1F

secondary

#BF3FB6

accent

#39E2EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178B1F

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

Preview Lab → · Contrast checker → · Palette generator →