Is Indigo really a colour of the rainbow?

Very good question asked on Colour Chat blog, and a partial answer, at the link below:

Also:

George Biernson, in 1972, wrote in the American Journal of Physics Why Did Newton See Indigo in the Spectrum? and “hypothesizes that Newton saw seven reasonably distinct colors in the artist’s paint mixture color circle (red, orange, yellow, green, blue, violet, and purple) and therefore assumed he could also see seven distinct colors in his crude spectral projections”.

Others have argued Newton was trying to add a seventh color to match the seven notes of the western world’s musical scale.

I will tackle the many problems of rainbow in my forthcoming series The rainbow is dead…long live the rainbow!!!

Stay tuned…

13 responses to “Is Indigo really a colour of the rainbow?

  1. Pingback: A rainbow for everyone «·

  2. Pingback: A good divergent color palette for Matlab «·

  3. Pingback: The rainbow is dead…long live the rainbow! – Part 1 «·

  4. Pingback: The rainbow is dead…long live the rainbow! – Part 1 «·

  5. Pingback: The rainbow is dead…long live the rainbow! – Part 2: a rainbow puzzle «·

  6. Pingback: Better Palettes « MyCarta·

  7. Pingback: The rainbow is dead…long live the rainbow! – Part 3 « MyCarta·

  8. Pingback: The rainbow is dead…long live the rainbow! – Part 4 – CIE Lab heated body « MyCarta·

  9. Pingback: The rainbow is dead…long live the rainbow! – Part 5 – CIE Lab linear L* rainbow « MyCarta·

  10. Pingback: Comparing color palettes | MyCarta·

  11. Pingback: The rainbow is dead…long live the rainbow! – Part 3 | MyCarta·

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s