#178F1F#178F1F

#178F1F is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.7% C 0.178 H 143.4°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#178F1F
RGB	rgb(23, 143, 31)
HSL	hsl(124, 72%, 33%)
HSV	hsv(124, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 78.3%, 43.9%)
CIE-LAB	lab(51.75, -52.71, 47.19)
CIE-LCH	lch(51.75, 70.75, 138.16°)
OKLab	oklab(56.68% -0.1427 0.106)
OKLCH	oklch(56.68% 0.178 143.4)
XYZ	xyz(10.4224, 19.9247, 4.5926)
Luminance	0.1993 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F1F #8F1787

analogous

#4B8F17 #178F1F #178F5B

triadic

#178F1F #1F178F #8F1F17

tetradic

#178F1F #174B8F #8F1787 #8F5B17

square

#178F1F #174B8F #8F1787 #8F5B17

split-complementary

#178F1F #5B178F #8F174B

monochromatic

#062608 #0F5A14 #178F1F #1FC42A #40E04B

Accessibility & contrast

On white

4.21

#178F1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#178F1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F1F

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F1F	#FFFFFF	#000000	##000000
##178F1F	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928104

Deuteranopia (green-blind)

#85782C

Tritanopia (blue-blind)

#008B7A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178f1f;
/* rgb */ color: rgb(23, 143, 31);
/* oklch */ color: oklch(56.7% 0.178 143.4);

Tailwind

colors: {
  custom: {
    50: '#6db163',
    500: '#178f1f',
    950: '#000000',
  },
}

SCSS

$custom: #178f1f;
$custom-light: #6db163;
$custom-dark: #000000;

JSON

{
  "hex": "#178f1f",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 31
  },
  "hsl": {
    "h": 124,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.56685,
    "c": 0.1778,
    "h": 143.4
  },
  "luminance": 0.19926
}

Semantic roles & 50–950 ramp

primary

#178F1F

secondary

#C141B8

accent

#39E3EF

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#081106

muted

#7B807A

Preview Lab

Preview with #178F1F

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

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