#538019 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.7:1	pass	pass	fail	AAA: use #406213 as the text (7.06:1)
Aaon black	4.47:1	fail	pass	fail	AA: use #56841a as the text (4.71:1) AAA: use #6ca621 as the text (7.11:1) AA: or shift the background to #fafafa (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #538019 as the background.

Brands using this color

Fonts for this mood

#538019 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #538019

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 #538019 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/538019-afbea2-4e56df-212d1f-f1f1e9?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