#e3eff3 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.17:1	fail	fail	fail	AA: use #3f7d92 as the text (4.61:1) AAA: use #2f5f6f as the text (7.03:1) AA: or shift the background to #6b6b6b (4.54:1) AAA: or shift the background to #4d4d4d (7.21:1)
Aaon black	17.91:1	pass	pass	pass	Passes AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e3eff3 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

3fb950 58a6ff f778ba 0b0f14 e6edf3

Terminal

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Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare.

Technical Dark Modern

38bdf8 818cf8 fbbf24 0f172a e2e8f0

Blueprint

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Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'.

Technical Cool Modern Dark

c9a227 7c8aa5 34d399 0c1222 e8edf5

Ledger Dark

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

Dark Luxury TechnicalFintech

b08d57 8a97a5 c9c9c9 101418 eef1f4

Estate

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Bronze on charcoal signals premium listings; the silver accent handles secondary detail without adding color.

Luxury Dark ElegantReal Estate

4b5d8a 8b97b3 c07a4e eef0f4 1f2430

Dusk

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Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals.

Cool Muted Elegant

Fonts for this mood

#e3eff3 reads as cool, light, clean. The font library is tagged with the same vocabulary:

Clean fonts →Modern fonts →

mcpConnect your agent — build around #e3eff3

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 #e3eff3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e3eff3-9cb5c4-df4e70-1f242d-e9f1ef?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