#ecfef9 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.04:1	fail	fail	fail	AA: use #078360 as the text (4.75:1) AAA: use #056147 as the text (7.48:1) AA: or shift the background to #737373 (4.54:1) AAA: or shift the background to #545454 (7.25:1)
Aaon black	20.11:1	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 #ecfef9 as the background.

Brands using this color

Palettes built around it

0f172a 64748b 2563eb f8fafc

Slate Workspace

Open in tool →

Slate on slate with a single blue — the productivity-app look where the interface disappears behind the work.

Minimal Cool Clean ModernSaas

0e7490 64748b f97316 f8fafc 0f172a

Clinic

Open in tool →

Teal reads clinical without the coldness of pure blue; the coral accent adds warmth for reassurance moments.

Clean Cool LightHealth

1f6f8b 7fa2b6 e76f51 f5f8fa 15222e

Alpine

Open in tool →

Glacier blue with a safety-orange accent: technical outdoor gear, not lifestyle.

Cool Clean LightOutdoors

2a9d8f 8ecae6 e9c46a f7fafc 1a2b3c

Coastal

Open in tool →

Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water.

Cool Light Clean

Fonts for this mood

#ecfef9 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

Clean fonts →

mcpConnect your agent — build around #ecfef9

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 #ecfef9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecfef9-a2beb9-d459b7-1f2b2d-e9f1eb?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