Yellow
#FFFF00
| HEX | #FFFF00 |
|---|---|
| RGB | 255, 255, 0 |
| HSL | 60°, 100%, 50% |
| CMYK | 0%, 0%, 100%, 0% |
| Relative luminance | 0.93 |
Text contrast
On white
1.07:1 Below AA
On black
19.56:1 Passes AA
Colours that work with it
Complement
Analogous
Triadic
Shade scale
Seen with colour blindness
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 Yellow?
#FFFF00. That is 255, 255, 0 in RGB, and hue 60°, saturation 100%, lightness 50% in HSL.
Q. Should text on Yellow be white or black?
Black. Contrast against white is 1.07:1 and against black 19.56:1, so take the higher one if body-size text has to be readable.
Q. What is the complement of Yellow?
#0000FF, 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 0% · Y 100% · K 0%. 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 #FFFF3E with protanopia, #FFFF4D with deuteranopia and #FF6E79 with tritanopia. Where those values converge with another colour, add a shape or a label instead of relying on hue.