#178E31#178E31

#178E31 is a mid, vivid green. Relative luminance 0.198; OKLCH L 56.6% C 0.165 H 145.8°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#178E31
RGB	rgb(23, 142, 49)
HSL	hsl(133, 72%, 32%)
HSV	hsv(133, 84%, 56%)
CMYK	cmyk(83.8%, 0%, 65.5%, 44.3%)
CIE-LAB	lab(51.55, -50.65, 39.69)
CIE-LCH	lch(51.55, 64.35, 141.92°)
OKLab	oklab(56.56% -0.1364 0.0925)
OKLCH	oklch(56.56% 0.165 145.8)
XYZ	xyz(10.5799, 19.7486, 6.1594)
Luminance	0.1975 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E31 #8E1774

analogous

#398E17 #178E31 #178E6C

triadic

#178E31 #31178E #8E3117

tetradic

#178E31 #17398E #8E1774 #8E6C17

square

#178E31 #17398E #8E1774 #8E6C17

split-complementary

#178E31 #6C178E #8E1739

monochromatic

#06250D #0E591F #178E31 #20C343 #3FE063

Accessibility & contrast

On white

4.24

#178E31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#178E31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E31

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E31	#FFFFFF	#000000	##000000
##178E31	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#908026

Deuteranopia (green-blind)

#847739

Tritanopia (blue-blind)

#008A7B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178e31;
/* rgb */ color: rgb(23, 142, 49);
/* oklch */ color: oklch(56.6% 0.165 145.8);

Tailwind

colors: {
  custom: {
    50: '#6cb06d',
    500: '#178e31',
    950: '#000000',
  },
}

SCSS

$custom: #178e31;
$custom-light: #6cb06d;
$custom-dark: #000000;

JSON

{
  "hex": "#178e31",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 49
  },
  "hsl": {
    "h": 133.109,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56564,
    "c": 0.16477,
    "h": 145.8
  },
  "luminance": 0.1975
}

Semantic roles & 50–950 ramp

primary

#178E31

secondary

#C040A4

accent

#39C7EF

background

#F7FBF6

surface

#EDF6EC

border

#C8D0C7

text

#081107

muted

#7B807A

Preview Lab

Preview with #178E31

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

Preview Lab → · Contrast checker → · Palette generator →