ikuy398 | Hatsune Miku - E-iRO (English & romaji subs) @ikuy398 | Uploaded August 2009 | Updated October 2024, 8 hours ago.
E-iRO /iːiro/ means a good color.

Original by AVTechNO
from nicovideo.jp/watch/nm7697737

Author's comment (translation):
The illustration was drawn by 和音 (Kazune).

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Translation lyrics:

Why do I choose only colors like clear burnished one?
When I lived in a jumbled city,
I had been choosing a clear-cut color fitting the city...
I came to love things not liked,
My "character(color)" died away
Adapting to surroundings,
I had been obtaining a peace of mind.
However... actually I'm not so.
—Like what forget my favorite color
—Like what have forgotten E-iRO

Someday, you will also understand it if you come to look for the same " (color)" as "me".
If even a slight hope is lapped over E-iRO,
It will start shining.
So, if you don't choose a color to seek,
Your character will become E-iRO, and
All of both worries and painful things
will change the rainbow E-iRO (=rainbow color)...
So...

Nothing but reluctant "happenings(colors)"
Nothing but absurdity "situations(colors)"
I have always seen them so that my " (color)" have
been subdued... before I know
As same as the today's sky.
The one to remind such "me" is
Heart colors of true "characteristic of me"

I think everyone surely knows the almost same " " as "me"—such a color is so...
indirectly and abstractly,
As feeling E-iRO
The "color" that need not do "vanity" and "overreaching" is
"My" E-iRO
As frank and natural
—because E-iRO is there...

Someday, if you also like almost the same e-Iro as me someday ...you can notice.
It can't be seen as long as you don't part, but
Apparently E-iRO exists...

So, if you don't choose "opportunities" to seek
All of yours will become your "character(color)"
All of both worries... and painful things
Can look the rainbow color... so...

Notes:
me (him) = 僕/boku means me as a man.
me (her) = あたし/atashi means me as a woman.