#11BB99
#11BB99
Blues · #1b9 is the three-digit shorthand for #11BB99. In CSS the two notations mean the same color.
| HEX | #11BB99 |
|---|---|
| RGB | 17, 187, 153 |
| HSL | 168°, 83%, 40% |
| CMYK | 91%, 0%, 18%, 27% |
| Relative luminance | 0.38 |
Tap a code to copy it
Text contrast
Aa
On white
2.44:1 Below AA
Aa
On black
8.59:1 Passes AA
Colours that work with it
Complement
#BB1133
Analogous
#11BB44#1188BB
Triadic
#9911BB#BB9911
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 #1b9 and #11BB99 the same color?
Yes. CSS doubles each digit of a three-digit hex, so #1b9 expands to #11BB99. Only 4,096 colors can be written in three digits, and this is one of them.
Q. What text color works on #11BB99?
Black text. Contrast against white is 2.44:1 and against black 8.59:1, so pick the larger one — WCAG asks for 4.5:1 at body size.
Q. Which named color is closest to #11BB99?
Verdigris. It is not an exact match, so where color matters use the hex code itself rather than the name.