#178F3F#178F3F

#178F3F is a mid, vivid green. Relative luminance 0.202; OKLCH L 57.0% C 0.154 H 148.7°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#178F3F
RGB	rgb(23, 143, 63)
HSL	hsl(140, 72%, 33%)
HSV	hsv(140, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 55.9%, 43.9%)
CIE-LAB	lab(52.05, -49.11, 33.50)
CIE-LCH	lch(52.05, 59.45, 145.70°)
OKLab	oklab(57.02% -0.1318 0.0803)
OKLCH	oklch(57.02% 0.154 148.7)
XYZ	xyz(11.0721, 20.1846, 8.0141)
Luminance	0.2019 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F3F #8F1767

analogous

#2B8F17 #178F3F #178F7B

triadic

#178F3F #3F178F #8F3F17

tetradic

#178F3F #172B8F #8F1767 #8F7B17

square

#178F3F #172B8F #8F1767 #8F7B17

split-complementary

#178F3F #7B178F #8F172B

monochromatic

#062611 #0F5A28 #178F3F #1FC456 #40E076

Accessibility & contrast

On white

4.17

#178F3F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#178F3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F3F

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F3F	#FFFFFF	#000000	##000000
##178F3F	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)

#908238

Deuteranopia (green-blind)

#837845

Tritanopia (blue-blind)

#008C7D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #178f3f;
/* rgb */ color: rgb(23, 143, 63);
/* oklch */ color: oklch(57.0% 0.154 148.7);

Tailwind

colors: {
  custom: {
    50: '#6cb176',
    500: '#178f3f',
    950: '#000000',
  },
}

SCSS

$custom: #178f3f;
$custom-light: #6cb176;
$custom-dark: #000000;

JSON

{
  "hex": "#178f3f",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 63
  },
  "hsl": {
    "h": 140,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.57024,
    "c": 0.15432,
    "h": 148.7
  },
  "luminance": 0.20186
}

Semantic roles & 50–950 ramp

primary

#178F3F

secondary

#C14196

accent

#39B2EF

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#081108

muted

#7B807B

Preview Lab

Preview with #178F3F

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

Preview Lab → · Contrast checker → · Palette generator →