#178D31#178D31

#178D31 is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.3% C 0.164 H 145.9°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#178D31
RGB	rgb(23, 141, 49)
HSL	hsl(133, 72%, 32%)
HSV	hsv(133, 84%, 55%)
CMYK	cmyk(83.7%, 0%, 65.2%, 44.7%)
CIE-LAB	lab(51.21, -50.32, 39.31)
CIE-LCH	lch(51.21, 63.85, 142.00°)
OKLab	oklab(56.28% -0.1354 0.0917)
OKLCH	oklch(56.28% 0.164 145.9)
XYZ	xyz(10.4318, 19.4524, 6.1100)
Luminance	0.1945 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178D31 #8D1773

analogous

#388D17 #178D31 #178D6C

triadic

#178D31 #31178D #8D3117

tetradic

#178D31 #17388D #8D1773 #8D6C17

square

#178D31 #17388D #8D1773 #8D6C17

split-complementary

#178D31 #6C178D #8D1738

monochromatic

#06240C #0E581F #178D31 #20C243 #3FE062

Accessibility & contrast

On white

4.29

#178D31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#178D31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178D31

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178D31	#FFFFFF	#000000	##000000
##178D31	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7F26

Deuteranopia (green-blind)

#837739

Tritanopia (blue-blind)

#00897A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178d31;
/* rgb */ color: rgb(23, 141, 49);
/* oklch */ color: oklch(56.3% 0.164 145.9);

Tailwind

colors: {
  custom: {
    50: '#6caf6d',
    500: '#178d31',
    950: '#000000',
  },
}

SCSS

$custom: #178d31;
$custom-light: #6caf6d;
$custom-dark: #000000;

JSON

{
  "hex": "#178d31",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 49
  },
  "hsl": {
    "h": 133.22,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.56281,
    "c": 0.16357,
    "h": 145.9
  },
  "luminance": 0.19454
}

Semantic roles & 50–950 ramp

primary

#178D31

secondary

#C040A4

accent

#39C7EF

background

#F7FAF6

surface

#EDF5EC

border

#C8CFC7

text

#081107

muted

#7B807A

Preview Lab

Preview with #178D31

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

Preview Lab → · Contrast checker → · Palette generator →