Home·Colour name reference

Forest green

#228B22

HEX#228B22
RGB34, 139, 34
HSL120°, 61%, 34%
CMYK76%, 0%, 76%, 45%
Relative luminance0.19

Text contrast

Aa

On white

4.39:1 Below AA

Aa

On black

4.78:1 Passes AA

Colours that work with it

Complement

#8C228C

Analogous

#578C22#228C57

Triadic

#22228C#8C2222

Shade scale

50100200300400500600700800

Seen with colour blindness

ProtanopiaDeuteranopiaTritanopia

How to read this

  • A hex code writes red, green and blue as two hexadecimal digits each. #ff0000 is red at full strength and the others at zero.
  • HSL states hue (0–360°), saturation and lightness. Nudging a colour brighter means changing one number, which is why it is easier to work with by hand.
  • Text contrast follows WCAG. Body-size text needs 4.5:1 or better, and 21:1 between white and black is the maximum possible.
  • The colour-blindness row computes how this colour appears under three types of colour vision deficiency — the reason never to encode information in colour alone.

Frequently asked questions

Q. What is the hex code for Forest green?

#228B22. That is 34, 139, 34 in RGB, and hue 120°, saturation 61%, lightness 34% in HSL.

Q. Should text on Forest green be white or black?

Black. Contrast against white is 4.39:1 and against black 4.78:1, so take the higher one if body-size text has to be readable.

Q. What is the complement of Forest green?

#8C228C, sitting 180° across the colour wheel. Side by side the two push against each other hardest, which makes it a good accent but tiring over large areas.

Q. Can I send these CMYK values straight to print?

The computed values are C 76% · M 0% · Y 76% · K 45%. Real printing depends on paper and ink, so check against the printer's swatch book when the colour matters.

Q. Is this colour distinguishable with colour blindness?

It appears as #4F503B with protanopia, #494242 with deuteranopia and #274F54 with tritanopia. Where those values converge with another colour, add a shape or a label instead of relying on hue.

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