@Pfff, I'm glad that @hotpinkglitter answered your question. I was having trouble being sure of your skin-tone based on the photo because some ladies and gents with red hair are cool and some are warm, and I know how misleading photos can sometimes be. I was going to suggest this, and will still mention it in case others are wondering about matching colours for polishes, clothes, and makeup, etc.: You can identify whether your skin is warm, cool, or neutral a few ways. 1) If you can see them, look at the veins under your skin. If they are purple or bluish, you're generally cool; and if they're greenish, you're generally warm. If you find they're in between blue and green, you might be neutral. 2) Look at your skin. Do you see a pink undertone or a bluish tinge to your skin? That suggests cool. If you see more peach, orange, or yellow, it suggests warm. 3) Look at the jewelry colours you prefer. If gold looks really good on you, it suggests warm. If silver and platinum are more flattering, it suggests cool. If you really just like gold because it's special, well, remember that there is also white gold, and if that looks better on you than yellow gold, it suggests cool... and expensive tastes.
/emoticons/
[email protected] 2x" width="20" height="20" /> 4) Look at the clothing that looks good on you. Cool-toned skin tends to suit white, icy and sapphire blues, vibrant and soft clear purples, (sometimes clear or blue-leaning greens), pinks, silvers, and black (of course many people with all types of skin like black clothing). Warm-toned skin tends to suit reds, rusts, oranges, (sometimes peaches and yellowy-turquoises), coppers, golds, yellows, mossy greens, and browns. Neutral toned folks can more easily wear many colours from both of these lists. And many colours suit cool and warm people depending on their nature - a 'cool' red has more blue or purple in it and will suit cool-toned skin better; where a 'warm' red has more orange in it and will suit warm-toned skin better. This is about generalities.
Cool and warm has nothing to do with the depth of your skin-tone, just the qualities of the undertones.
The other thing I wanted to mention is that though most of us suit certain colours better than others, and it's a good place to start for choosing nail polish that works for you, polish is a fun way to experiment with colour outside of your typical 'best colours'. I have a cool complexion too, but I have polishes that are every colour of the rainbow. As you play with colour, you will find there can be colours you really like on the nails even if you might not want wear them close to your face. I have never found an orange piece of clothing I thought looked good on me, but I have a clear, crisp orange that really works on my nails, especially in the summer when I have a bit of a tan. I also use a few of these 'more foreign' colours in nail art projects. Don't limit yourself based on a colour family rule!
In terms of matching colours, some people are diligent in keeping the polish coordinated with their wardrobe of the day. Many don't worry about that. The nails are fairly small and removed from the overall impression, so I wouldn't stress about it. If I haven't decided what to wear, I might look at my nails to guide the choice. For special occasions you may want to plan the nail polish to go with the attire. But note I say 'go' and not 'match'. I don't think, given current fashion trend, there is any need, or even benefit, to generally coordinating to have exactly the same colour polish as clothing. Especially as if a person has a cool skin-tone, many of their polishes will be in cool colours and will consistently go with their generally cool wardrobe! Done! Don't stress. Pick what you love and have fun!