#182521 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	15.84:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.33:1	fail	fail	fail	AA: use #537f71 as the text (4.64:1) AAA: use #6ea091 as the text (7.1:1) AA: or shift the background to #8a8a8a (4.59:1) AAA: or shift the background to #adadad (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #182521 as the background.

Brands using this color

Palettes built around it

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Mint Modern

Open in tool →

Emerald as a primary rather than a success color, anchored by deep teal text — fresh, friendly, and fintech-adjacent.

Modern Clean FriendlyFintech

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Forest Floor

Open in tool →

Moss and bark with a mushroom-cap amber — grounded and quiet, made for long-form nature content.

Dark Muted WarmOutdoors

ff5e5b 00cecb ffed66 ffffff 222222

Crayon Box

Open in tool →

Red, teal and yellow at crayon saturation — joyful, but on white with black type so it stays readable for grown-ups.

Playful Vivid FriendlyKids

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Paper & Pine

Open in tool →

Deep pine on paper-white with a marmalade accent — a quiet, sustainable-brand palette that isn't beige.

Minimal Cool Clean Muted

Fonts for this mood

#182521 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #182521

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 #182521 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/182521-a2beb9-d459b9-1f2b2d-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