#178F21#178F21

#178F21 is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.7% C 0.177 H 143.6°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#178F21
RGB	rgb(23, 143, 33)
HSL	hsl(125, 72%, 33%)
HSV	hsv(125, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 76.9%, 43.9%)
CIE-LAB	lab(51.76, -52.56, 46.50)
CIE-LCH	lch(51.76, 70.18, 138.50°)
OKLab	oklab(56.7% -0.1422 0.1048)
OKLCH	oklch(56.7% 0.177 143.6)
XYZ	xyz(10.4496, 19.9356, 4.7358)
Luminance	0.1994 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F21 #8F1785

analogous

#498F17 #178F21 #178F5D

triadic

#178F21 #21178F #8F2117

tetradic

#178F21 #17498F #8F1785 #8F5D17

square

#178F21 #17498F #8F1785 #8F5D17

split-complementary

#178F21 #5D178F #8F1749

monochromatic

#062609 #0F5A15 #178F21 #1FC42D #40E04D

Accessibility & contrast

On white

4.21

#178F21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#178F21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F21

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F21	#FFFFFF	#000000	##000000
##178F21	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)

#928109

Deuteranopia (green-blind)

#85782D

Tritanopia (blue-blind)

#008B7A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178f21;
/* rgb */ color: rgb(23, 143, 33);
/* oklch */ color: oklch(56.7% 0.177 143.6);

Tailwind

colors: {
  custom: {
    50: '#6db164',
    500: '#178f21',
    950: '#000000',
  },
}

SCSS

$custom: #178f21;
$custom-light: #6db164;
$custom-dark: #000000;

JSON

{
  "hex": "#178f21",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 33
  },
  "hsl": {
    "h": 125,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.567,
    "c": 0.17669,
    "h": 143.6
  },
  "luminance": 0.19937
}

Semantic roles & 50–950 ramp

primary

#178F21

secondary

#C141B6

accent

#39E0EF

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#081106

muted

#7B807A

Preview Lab

Preview with #178F21

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

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