#178D39#178D39

#178D39 is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.4% C 0.157 H 147.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#178D39
RGB	rgb(23, 141, 57)
HSL	hsl(137, 72%, 32%)
HSV	hsv(137, 84%, 55%)
CMYK	cmyk(83.7%, 0%, 59.6%, 44.7%)
CIE-LAB	lab(51.30, -49.28, 35.61)
CIE-LCH	lch(51.30, 60.80, 144.15°)
OKLab	oklab(56.38% -0.1324 0.0845)
OKLCH	oklch(56.38% 0.157 147.5)
XYZ	xyz(10.6159, 19.5260, 7.0795)
Luminance	0.1953 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178D39 #8D176B

analogous

#308D17 #178D39 #178D74

triadic

#178D39 #39178D #8D3917

tetradic

#178D39 #17308D #8D176B #8D7417

square

#178D39 #17308D #8D176B #8D7417

split-complementary

#178D39 #74178D #8D1730

monochromatic

#06240E #0E5824 #178D39 #20C24E #3FE06D

Accessibility & contrast

On white

4.28

#178D39 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#178D39 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178D39

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178D39	#FFFFFF	#000000	##000000
##178D39	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8031

Deuteranopia (green-blind)

#827740

Tritanopia (blue-blind)

#008A7B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178d39;
/* rgb */ color: rgb(23, 141, 57);
/* oklch */ color: oklch(56.4% 0.157 147.5);

Tailwind

colors: {
  custom: {
    50: '#6caf72',
    500: '#178d39',
    950: '#000000',
  },
}

SCSS

$custom: #178d39;
$custom-light: #6caf72;
$custom-dark: #000000;

JSON

{
  "hex": "#178d39",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 57
  },
  "hsl": {
    "h": 137.288,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.56379,
    "c": 0.15704,
    "h": 147.5
  },
  "luminance": 0.19527
}

Semantic roles & 50–950 ramp

primary

#178D39

secondary

#C0409B

accent

#39BAEF

background

#F7FAF7

surface

#EDF5ED

border

#C8CFC8

text

#081108

muted

#7B807B

Preview Lab

Preview with #178D39

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

Preview Lab → · Contrast checker → · Palette generator →