#178F40#178F40

#178F40 is a mid, vivid green. Relative luminance 0.202; OKLCH L 57.0% C 0.153 H 148.9°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#178F40
RGB	rgb(23, 143, 64)
HSL	hsl(141, 72%, 33%)
HSV	hsv(141, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 55.2%, 43.9%)
CIE-LAB	lab(52.06, -48.95, 33.01)
CIE-LCH	lch(52.06, 59.04, 146.01°)
OKLab	oklab(57.04% -0.1314 0.0793)
OKLCH	oklch(57.04% 0.153 148.9)
XYZ	xyz(11.1003, 20.1959, 8.1627)
Luminance	0.2020 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F40 #8F1766

analogous

#2A8F17 #178F40 #178F7C

triadic

#178F40 #40178F #8F4017

tetradic

#178F40 #172A8F #8F1766 #8F7C17

square

#178F40 #172A8F #8F1766 #8F7C17

split-complementary

#178F40 #7C178F #8F172A

monochromatic

#062611 #0F5A28 #178F40 #1FC458 #40E077

Accessibility & contrast

On white

4.17

#178F40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#178F40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F40

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F40	#FFFFFF	#000000	##000000
##178F40	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#908239

Deuteranopia (green-blind)

#837946

Tritanopia (blue-blind)

#008C7D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #178f40;
/* rgb */ color: rgb(23, 143, 64);
/* oklch */ color: oklch(57.0% 0.153 148.9);

Tailwind

colors: {
  custom: {
    50: '#6cb177',
    500: '#178f40',
    950: '#000000',
  },
}

SCSS

$custom: #178f40;
$custom-light: #6cb177;
$custom-dark: #000000;

JSON

{
  "hex": "#178f40",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 64
  },
  "hsl": {
    "h": 140.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.57038,
    "c": 0.15344,
    "h": 148.9
  },
  "luminance": 0.20197
}

Semantic roles & 50–950 ramp

primary

#178F40

secondary

#C14195

accent

#39B1EF

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#081109

muted

#7B807B

Preview Lab

Preview with #178F40

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

Preview Lab → · Contrast checker → · Palette generator →