#90cfdf as text	Ratio	AA	AA large	AAA	Fix
Aaon white	1.72:1	fail	fail	fail	AA: use #2a7d92 as the text (4.72:1) AAA: use #205f6f as the text (7.17:1) AA: or shift the background to #525252 (4.53:1) AAA: or shift the background to #363636 (7.01:1)
Aaon black	12.18:1	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 #90cfdf as the background.

Brands using this color

Ubersecondary · #9dcdd6 · Δ1.694

Palettes built around it

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

#90cfdf reads as cool, light, clean. The font library is tagged with the same vocabulary:

Clean fonts →Modern fonts →

mcpConnect your agent — build around #90cfdf

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 #90cfdf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90cfdf-a2b5be-df4e77-1f242d-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