#178B2B#178B2B

#178B2B is a mid, vivid green. Relative luminance 0.188; OKLCH L 55.7% C 0.166 H 145.0°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#178B2B
RGB	rgb(23, 139, 43)
HSL	hsl(130, 72%, 32%)
HSV	hsv(130, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 69.1%, 45.5%)
CIE-LAB	lab(50.48, -50.33, 41.18)
CIE-LCH	lch(50.48, 65.03, 140.71°)
OKLab	oklab(55.65% -0.1357 0.095)
OKLCH	oklch(55.65% 0.166 145)
XYZ	xyz(10.0213, 18.8206, 5.3896)
Luminance	0.1882 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B2B #8B1777

analogous

#3D8B17 #178B2B #178B65

triadic

#178B2B #2B178B #8B2B17

tetradic

#178B2B #173D8B #8B1777 #8B6517

square

#178B2B #173D8B #8B1777 #8B6517

split-complementary

#178B2B #65178B #8B173D

monochromatic

#06220B #0E561B #178B2B #20C03B #3DDF59

Accessibility & contrast

On white

4.41

#178B2B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#178B2B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B2B

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B2B	#FFFFFF	#000000	##000000
##178B2B	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7D1E

Deuteranopia (green-blind)

#817534

Tritanopia (blue-blind)

#008777

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #178b2b;
/* rgb */ color: rgb(23, 139, 43);
/* oklch */ color: oklch(55.7% 0.166 145.0);

Tailwind

colors: {
  custom: {
    50: '#6cae69',
    500: '#178b2b',
    950: '#000000',
  },
}

SCSS

$custom: #178b2b;
$custom-light: #6cae69;
$custom-dark: #000000;

JSON

{
  "hex": "#178b2b",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 43
  },
  "hsl": {
    "h": 130.345,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.55652,
    "c": 0.16566,
    "h": 145
  },
  "luminance": 0.18822
}

Semantic roles & 50–950 ramp

primary

#178B2B

secondary

#BF3FA9

accent

#39CFEE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081007

muted

#7B7F7A

Preview Lab

Preview with #178B2B

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

Preview Lab → · Contrast checker → · Palette generator →