#3333DD
#3333DD
Blues · #33d is the three-digit shorthand for #3333DD. In CSS the two notations mean the same color.
| HEX | #3333DD |
|---|---|
| RGB | 51, 51, 221 |
| HSL | 240°, 71%, 53% |
| CMYK | 77%, 77%, 0%, 13% |
| Relative luminance | 0.08 |
Tap a code to copy it
Text contrast
Aa
On white
7.9:1 Passes AA
Aa
On black
2.66:1 Below AA
Colours that work with it
Complement
#DCDC32
Analogous
#3287DC#8732DC
Triadic
#DC3232#32DC32
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 #33d and #3333DD the same color?
Yes. CSS doubles each digit of a three-digit hex, so #33d expands to #3333DD. Only 4,096 colors can be written in three digits, and this is one of them.
Q. What text color works on #3333DD?
White text. Contrast against white is 7.9:1 and against black 2.66:1, so pick the larger one — WCAG asks for 4.5:1 at body size.
Q. Which named color is closest to #3333DD?
Iris. It is not an exact match, so where color matters use the hex code itself rather than the name.