#212b28 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	14.57:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.44:1	fail	fail	fail	AA: use #5f7c73 as the text (4.62:1) AAA: use #809d95 as the text (7.17:1) AA: or shift the background to #8f8f8f (4.51:1) AAA: or shift the background to #b5b5b5 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #212b28 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

6b6b2e a8a670 a1421f f6f3ea 2c2a22

Olive Grove

Open in tool →

Olive and straw with a rust accent — Mediterranean and unhurried; good for food, wine and hospitality.

Muted Warm Elegant

Fonts for this mood

#212b28 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #212b28

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 #212b28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/212b28-a2beb9-d459b9-1f2b2d-e9f1eb?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