purple dress and black shoes Mambabacosp Vintage Women's Gothic Contrast Color Long Sleeve Ruffle Dress With Bowknot (US, Alpha, Small, Regular, Regular, Black+Purple) : Clothing, & Jewelry 5690134_4. Handmade Premium Quality Purple Leather

Black-tie attire is typically expected at especially upscale events, and guests are expected to dress to impress

- For more color options, please refer to our color chart

Contrast values are based on Derrington-Krauskopf-Lennie (DKL) color space which assumes three orthogonal cardinal axes: (a) L-M isoluminant axis along which L and M cone stimulation varies in reciprocal fashion such that luminance (L+M) and S cone stimulation remain constant, (b) S cone isoluminant axis along S cone stimulation varies from high to low while L and M cone stimulation and hence luminance (L+M) remain constant, (c) an orthogonal achromatic axis along which L, M and S cones are stimulated equally[19,20]

The cones in our retinas the fine layer of nerve tissue that lines the back of our eyes detect the blue, green, and red in an image