#FF1111
#FF1111
Reds · #f11 is the three-digit shorthand for #FF1111. In CSS the two notations mean the same color.
| HEX | #FF1111 |
|---|---|
| RGB | 255, 17, 17 |
| HSL | 0°, 100%, 53% |
| CMYK | 0%, 93%, 93%, 0% |
| Relative luminance | 0.22 |
Tap a code to copy it
Text contrast
Aa
On white
3.93:1 Below AA
Aa
On black
5.34:1 Passes AA
Colours that work with it
Complement
#0FFFFF
Analogous
#FF0F87#FF870F
Triadic
#0FFF0F#0F0FFF
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. Are #f11 and #FF1111 the same color?
Yes. CSS doubles each digit of a three-digit hex, so #f11 expands to #FF1111. Only 4,096 colors can be written in three digits, and this is one of them.
Q. What text color works on #FF1111?
Black text. Contrast against white is 3.93:1 and against black 5.34:1, so pick the larger one — WCAG asks for 4.5:1 at body size.
Q. Which named color is closest to #FF1111?
Red. It is not an exact match, so where color matters use the hex code itself rather than the name.