#03111c as text	Ratio	AA	AA large	AAA	Fix
Aaon white	19.08:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.1:1	fail	fail	fail	AA: use #1579c6 as the text (4.58:1) AAA: use #349bea as the text (7.02:1) AA: or shift the background to #7d7d7d (4.63:1) AAA: or shift the background to #9e9e9e (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03111c as the background.

Brands using this color

Hugging Faceprimary · #0b0f19 · Δ1.532

Fonts for this mood

#03111c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →Luxury fonts →Bold fonts →

mcpConnect your agent — build around #03111c

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 #03111c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03111c-9caec4-df4e56-1f212d-e9f1f1?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