#313031 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	13.14:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.6:1	fail	fail	fail	AA: use #767476 as the text (4.53:1) AAA: use #979597 as the text (7.06:1) AA: or shift the background to #999999 (4.61:1) AAA: or shift the background to #bfbfbf (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #313031 as the background.

Brands using this color

Palettes built around it

7f8f70 bdb5a6 b5654d f8f6f2 2e2e2a

Clean Beauty

Open in tool →

Sage and clay on unbleached white — the nothing-to-hide palette for ingredient-led skincare.

Minimal Muted CleanBeauty

Fonts for this mood

#313031 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

Neutral fonts →Luxury fonts →Bold fonts →

mcpConnect your agent — build around #313031

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 #313031 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/313031-a2beb0-c859d4-1f2d2b-eaf1e9?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