➕ Adds colorblind definition (#361)

* feat: adds colorblind definition

* Update 11ty/definitions/colorblind.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* Update 11ty/definitions/colorblind.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* Update 11ty/definitions/colorblind.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

Co-authored-by: Tatiana Mac <github@tatianamac.com>

11ty/definitions/colorblind.md

@@ -0,0 +1,43 @@
+---
+title: colourblind
+slug: colourblind
+flag:
+  text: 'Medical appropriation'
+  level: avoid
+defined: true
+excerpt: someone with decreased ability to see colour or differences in colour; colloquially, the concept that someone "does not see race" and therefore, that race and racism no longer exist and no longer impact people's lives; a tool of white supremacy```
+speech: adjective
+reading:
+  - text: 'What you erase when you say “I don’t see color”'
+    href: https://medium.com/@tinu/what-you-erase-when-you-say-i-dont-see-color-73360346afa7
+  - text: '7 Reasons Why "Colorblindness" Contributes to Racism Instead of Solves It'
+    href: https://everydayfeminism.com/2015/02/colorblindness-adds-to-racism/
+---
+
+a condition where someone can only see a limited range of colors or is unable to clearly distinguish different colors; condition can be congenital (from birth) or acquired (due to chronic illness, disease, injury, old age, etc); colloquially, belief that "one does not see race," and, that racism is no longer is a systemic problem; also post-racial.
+
+(Also spelled color-blind.)
+
+## Appropriate Usage
+
+Referring the medical condition as described above
+
+## Inappropriate Usage
+
+As a literary metaphor for ignorance of racial injustice
+
+## Issues
+
+Connoting ignorance or racist microagression with a medical disorder implies that actions we can control (bad choices) are the same as actions that cannot necessarily be controlled (colorblindness). It reinforces the discriminatory idea that disability is bad.
+
+## Impact
+
+Using the word colorblind in a medically appropriative way can reinforce the idea that blind and/or vision-impaired people are somehow less than and that disability is bad (see [Ableism](/definitions/ableism)).
+
+By using ableist language, we are perpetuating violence against people who experience disabilities. Using this language perpetuates those systems and language of harm, regardless of our intent.
+
+Using the word colorblind in a racial context perpetuates the falsehood that we live in a post-racial society. "I'm colorblind" is a microaggression used to ignore the lived experiences of racially oppressed people, silence those seeking racial justice, and prevent discussions of race needed for racial equity.
+
+## Usage Tip
+
+Be mindful if you're referring to the medical condition or using it as a literary metaphor. If the latter, substitute by being more specific.