#100e1f as text	Ratio	AA	AA large	AAA	Fix
Aaon white	19.01:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.1:1	fail	fail	fail	AA: use #756bbd as the text (4.59:1) AAA: use #968ecc as the text (7.04:1) AA: or shift the background to #7d7d7d (4.62:1) AAA: or shift the background to #9e9e9e (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100e1f as the background.

Brands using this color

Palettes built around it

c9a227 7c8aa5 34d399 0c1222 e8edf5

Ledger Dark

Open in tool →

Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy.

Dark Luxury TechnicalFintech

Fonts for this mood

#100e1f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →Modern fonts →

mcpConnect your agent — build around #100e1f

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 #100e1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100e1f-a59cc4-dfaa4e-271f2d-e9ecf1?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