#178C1F#178C1F

#178C1F is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.8% C 0.174 H 143.4°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#178C1F
RGB	rgb(23, 140, 31)
HSL	hsl(124, 72%, 32%)
HSV	hsv(124, 84%, 55%)
CMYK	cmyk(83.6%, 0%, 77.9%, 45.1%)
CIE-LAB	lab(50.73, -51.76, 46.19)
CIE-LCH	lch(50.73, 69.37, 138.25°)
OKLab	oklab(55.83% -0.1401 0.1039)
OKLCH	oklch(55.83% 0.174 143.4)
XYZ	xyz(9.9781, 19.0360, 4.4445)
Luminance	0.1904 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178C1F #8C1784

analogous

#498C17 #178C1F #178C5A

triadic

#178C1F #1F178C #8C1F17

tetradic

#178C1F #17498C #8C1784 #8C5A17

square

#178C1F #17498C #8C1784 #8C5A17

split-complementary

#178C1F #5A178C #8C1749

monochromatic

#062308 #0E5713 #178C1F #20C12B #3EDF49

Accessibility & contrast

On white

4.37

#178C1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#178C1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178C1F

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178C1F	#FFFFFF	#000000	##000000
##178C1F	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E06

Deuteranopia (green-blind)

#83752B

Tritanopia (blue-blind)

#008877

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #178c1f;
/* rgb */ color: rgb(23, 140, 31);
/* oklch */ color: oklch(55.8% 0.174 143.4);

Tailwind

colors: {
  custom: {
    50: '#6daf63',
    500: '#178c1f',
    950: '#000000',
  },
}

SCSS

$custom: #178c1f;
$custom-light: #6daf63;
$custom-dark: #000000;

JSON

{
  "hex": "#178c1f",
  "rgb": {
    "r": 23,
    "g": 140,
    "b": 31
  },
  "hsl": {
    "h": 124.103,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.55834,
    "c": 0.17445,
    "h": 143.4
  },
  "luminance": 0.19037
}

Semantic roles & 50–950 ramp

primary

#178C1F

secondary

#BF3FB7

accent

#39E2EF

background

#F7FAF6

surface

#EDF5EB

border

#C8CFC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178C1F

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

Preview Lab → · Contrast checker → · Palette generator →