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HTML

              
                <p>By winning <a href="https://blog.codepen.io/rodeo/season-two/#week-three">week three of seasons 2</a> of the CodePen rodeo, I've won one year of PRO membership. As I already am a PRO member I don't have much need for this. But the guys at CodePen were kind enough to let me give it to another user. So I figured I'd do a little challenge of my own for you to take part in.</p>
<p>The objective is to create a nice looking colour palette that could be part of a styleguide, something like in <a href="http://dribbble.com/shots/1114017-Color-Palette" title="'Color Palette' by Bill S Kenney">this awesome Dribbble shot</a>.</p>
<ul class="palette">
  <li class="swatch" title="#4cadeb"></li>
  <li class="swatch" title="#7ac2f0"></li>
  <li class="swatch" title="#a8d7f5"></li>
  <li class="swatch" title="#eb8a4c"></li>
  <li class="swatch" title="#f0a87a"></li>
  <li class="swatch" title="#f5c6a8"></li>
  <li class="swatch" title="#9b9b9b"></li>
  <li class="swatch" title="#b5b5b5"></li>
</ul>
<p>Make it pretty, make it playful, make it awesome. You can use whatever you want; CSS, JS, jQuery, use what fits you best.</p>
<p>There are some requirements as to what must be included:</p>
<ul class="requirements">
  <li class="requirement">The colours #4cadeb, #7ac2f0, #a8d7f5, #eb8a4c, #f0a87a, #f5c6a8, #9b9b9b, #b5b5b5 (shown above) must be included.</li>
  <li class="requirement">For each colour, the respective RGB, HSL and HEX value must be visible.</li>
</ul>
<p>Responsive behaviour and fancy animations are entirely optional, but they might give you a little bonus.</p>
<p>Be sure to tag your entry with <b><a href="https://codepen.io/tag/pro-007">pro-007</a></b>. I will pick the winner myself, so it doesn't really matter how many views or hearts you get. You may only have <b>one entry</b> at a time. The challenge <b>ends June 28, 2013</b>.</p>
<p>If you have any questions you can contact me <a href="https://twitter.com/sachaschmid">on Twitter</a>. Good luck to all of you!</p>
              
            
!

CSS

              
                @import "compass/css3";

@import url(https://fonts.googleapis.com/css?family=Roboto+Condensed:400,700);

@mixin keyframes ($name) {
  @-webkit-keyframes $name { @content; }
  @-moz-keyframes $name { @content; }
  @-ms-keyframes $name { @content; }
  @keyframes $name { @content; }
}

@mixin animation ($value) {
  -webkit-animation: $value;
  -moz-animation: $value;
  -ms-animation: $value;
  animation: $value;
}

@mixin animation-delay ($value) {
  -webkit-animation-delay: $value;
  -moz-animation-delay: $value;
  -ms-animation-delay: $value;
  animation-delay: $value;
}

* {
  @include box-sizing(border-box);
}

%clearfix::after {
  content: "";
  display: table;
  clear: both;
}

body {
  max-width: 40em;
  padding: 0 3em;
  margin: 3em auto;
  font: 100%/1.5 Roboto Condensed, sans-serif;
  color: #333;
  background-color: #fafafa;
}

p,
ul {
  margin-top: 0;
  margin-bottom: 1.5em;
}

a {
  @include transition(color 0.25s ease-in-out, border-bottom-color 0.25s ease-in-out);
  color: #4cadeb;
  border-bottom: 1px solid transparent;
  text-decoration: none;
  
  &:hover,
  &:focus {
    color: lighten(#4cadeb, 10%);
    border-bottom-color: lighten(#4cadeb, 10%);
  }
}

.palette {
  @extend %clearfix;
  padding: 1.5em;
  margin: 0 -1.5em 1.5em;
  list-style: none;
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 3px;
}

.swatch {
  @include transition(transform 0.25s ease-in-out);
  @include animation(popup 0.5s ease-in-out);
  float: left;
  width: 11.625%;
  padding-bottom: 11.625%;
  margin-right: 1%;
  border-radius: 50%;
  -webkit-backface-visibility: hidden;
  
  &:last-child {
    margin-right: 0;
  }
    
  &:hover {
    @include transform(translateY(-10%));
  }
}

.swatch:nth-child(1) {
  background-color: #4cadeb;
}

.swatch:nth-child(2) {
  @include animation-delay(0.1s);
  background-color: lighten(#4cadeb, 10%);
}

.swatch:nth-child(3) {
  @include animation-delay(0.2s);
  background-color: lighten(#4cadeb, 20%);
}

.swatch:nth-child(4) {
  @include animation-delay(0.3s);
  background-color: adjust_hue(#4cadeb, -180deg);
}

.swatch:nth-child(5) {
  @include animation-delay(0.4s);
  background-color: lighten(adjust_hue(#4cadeb, -180deg), 10%);
}

.swatch:nth-child(6) {
  @include animation-delay(0.5s);
  background-color: lighten(adjust_hue(#4cadeb, -180deg), 20%);
}

.swatch:nth-child(7) {
  @include animation-delay(0.6s);
  background-color: desaturate(#4cadeb, 80%);
}

.swatch:nth-child(8) {
  @include animation-delay(0.7s);
  background-color: lighten(desaturate(#4cadeb, 80%), 10%);
}

.requirements {
  padding: 0;
  list-style: none;
}

.requirement {
  @include background-image(linear-gradient(#fff, #fafafa));
  @include transition(border 0.25s ease-in-out);
  padding: 1em;
  margin-bottom: 0.75em;
  border: 1px solid #e8e8e8;
  border-left-width: 5px;
  border-radius: 3px;
  
  &:hover {
    border-left-width: 10px;
  }
}

@include keyframes(popup) {
  50% { @include transform(translateY(-10%)); }
  100% { @include transform(translateY(0)); }
}
              
            
!

JS

              
                
              
            
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999px

Console