#178B28#178B28

#178B28 is a mid, vivid green. Relative luminance 0.188; OKLCH L 55.6% C 0.168 H 144.6°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#178B28
RGB	rgb(23, 139, 40)
HSL	hsl(129, 72%, 32%)
HSV	hsv(129, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 71.2%, 45.5%)
CIE-LAB	lab(50.45, -50.64, 42.43)
CIE-LCH	lch(50.45, 66.06, 140.04°)
OKLab	oklab(55.62% -0.1367 0.0973)
OKLCH	oklch(55.62% 0.168 144.6)
XYZ	xyz(9.9683, 18.7994, 5.1103)
Luminance	0.1880 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B28 #8B177A

analogous

#408B17 #178B28 #178B62

triadic

#178B28 #28178B #8B2817

tetradic

#178B28 #17408B #8B177A #8B6217

square

#178B28 #17408B #8B177A #8B6217

split-complementary

#178B28 #62178B #8B1740

monochromatic

#06220A #0E5619 #178B28 #20C037 #3DDF55

Accessibility & contrast

On white

4.41

#178B28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#178B28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B28

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B28	#FFFFFF	#000000	##000000
##178B28	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)

#8E7D19

Deuteranopia (green-blind)

#817532

Tritanopia (blue-blind)

#008777

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #178b28;
/* rgb */ color: rgb(23, 139, 40);
/* oklch */ color: oklch(55.6% 0.168 144.6);

Tailwind

colors: {
  custom: {
    50: '#6cae68',
    500: '#178b28',
    950: '#000000',
  },
}

SCSS

$custom: #178b28;
$custom-light: #6cae68;
$custom-dark: #000000;

JSON

{
  "hex": "#178b28",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 40
  },
  "hsl": {
    "h": 128.793,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.55623,
    "c": 0.16775,
    "h": 144.6
  },
  "luminance": 0.18801
}

Semantic roles & 50–950 ramp

primary

#178B28

secondary

#BF3FAC

accent

#39D4EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178B28

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

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