#178F18#178F18

#178F18 is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.6% C 0.181 H 142.8°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#178F18
RGB	rgb(23, 143, 24)
HSL	hsl(121, 72%, 33%)
HSV	hsv(121, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 83.2%, 43.9%)
CIE-LAB	lab(51.71, -53.19, 49.40)
CIE-LCH	lch(51.71, 72.59, 137.12°)
OKLab	oklab(56.64% -0.1443 0.1096)
OKLCH	oklch(56.64% 0.181 142.8)
XYZ	xyz(10.3400, 19.8918, 4.1585)
Luminance	0.1989 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F18 #8F178E

analogous

#528F17 #178F18 #178F54

triadic

#178F18 #18178F #8F1817

tetradic

#178F18 #17528F #8F178E #8F5417

square

#178F18 #17528F #8F178E #8F5417

split-complementary

#178F18 #54178F #8F1752

monochromatic

#062606 #0F5A0F #178F18 #1FC421 #40E041

Accessibility & contrast

On white

4.22

#178F18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#178F18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F18

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F18	#FFFFFF	#000000	##000000
##178F18	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928100

Deuteranopia (green-blind)

#867827

Tritanopia (blue-blind)

#008B79

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178f18;
/* rgb */ color: rgb(23, 143, 24);
/* oklch */ color: oklch(56.6% 0.181 142.8);

Tailwind

colors: {
  custom: {
    50: '#6eb160',
    500: '#178f18',
    950: '#000000',
  },
}

SCSS

$custom: #178f18;
$custom-light: #6eb160;
$custom-dark: #000000;

JSON

{
  "hex": "#178f18",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 24
  },
  "hsl": {
    "h": 120.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.56642,
    "c": 0.18122,
    "h": 142.8
  },
  "luminance": 0.19893
}

Semantic roles & 50–950 ramp

primary

#178F18

secondary

#C141C0

accent

#39EDEF

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091105

muted

#7B807A

Preview Lab

Preview with #178F18

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

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