Home·Colour name reference

Fern green

#4F7942

HEX#4F7942
RGB79, 121, 66
HSL106°, 29%, 37%
CMYK35%, 0%, 45%, 53%
Relative luminance0.16

Text contrast

Aa

On white

5.07:1 Passes AA

Aa

On black

4.15:1 Below AA

Colours that work with it

Complement

#6D437A

Analogous

#6B7A43#437A52

Triadic

#43507A#7A4350

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 Fern green?

#4F7942. That is 79, 121, 66 in RGB, and hue 106°, saturation 29%, lightness 37% in HSL.

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

White. Contrast against white is 5.07:1 and against black 4.15:1, so take the higher one if body-size text has to be readable.

Q. What is the complement of Fern green?

#6D437A, 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 35% · M 0% · Y 45% · K 53%. 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 #61624F with protanopia, #5F5C53 with deuteranopia and #515A5C with tritanopia. Where those values converge with another colour, add a shape or a label instead of relying on hue.

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