#212820 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	15.12:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.39:1	fail	fail	fail	AA: use #657a62 as the text (4.51:1) AAA: use #869b82 as the text (7.02:1) AA: or shift the background to #8f8f8f (4.67:1) AAA: or shift the background to #b3b3b3 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #212820 as the background.

Brands using this color

Palettes built around it

e8c170 a8b5a0 f28e6b 1f2a24 f1ede4

Chalkboard

Open in tool →

Slate green with chalk cream and a coral — nostalgic without being twee.

Dark Muted WarmEducation

Fonts for this mood

#212820 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #212820

live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp

claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp

try this prompt

›analyze #212820 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/212820-a2bea2-864edf-1f2d23-eef1e9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md