Home·Colour name reference

Citron

#E4D00A

HEX#E4D00A
RGB228, 208, 10
HSL54°, 92%, 47%
CMYK0%, 9%, 96%, 11%
Relative luminance0.62

Text contrast

Aa

On white

1.58:1 Below AA

Aa

On black

13.33:1 Passes AA

Colours that work with it

Complement

#0A20E6

Analogous

#E6620A#8EE60A

Triadic

#0AE6D0#D00AE6

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 Citron?

#E4D00A. That is 228, 208, 10 in RGB, and hue 54°, saturation 92%, lightness 47% in HSL.

Q. Should text on Citron be white or black?

Black. Contrast against white is 1.58:1 and against black 13.33:1, so take the higher one if body-size text has to be readable.

Q. What is the complement of Citron?

#0A20E6, 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 0% · M 9% · Y 96% · K 11%. 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 #DBDB3A with protanopia, #DDDE45 with deuteranopia and #E36068 with tritanopia. Where those values converge with another colour, add a shape or a label instead of relying on hue.

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