#021827 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	18.06:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.16:1	fail	fail	fail	AA: use #0a7bc7 as the text (4.67:1) AAA: use #169bf3 as the text (7.02:1) AA: or shift the background to #808080 (4.57:1) AAA: or shift the background to #a3a3a3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #021827 as the background.

Brands using this color

Palettes built around it

38bdf8 818cf8 fbbf24 0f172a e2e8f0

Blueprint

Open in tool →

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

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

Fonts for this mood

#021827 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →Luxury fonts →Bold fonts →

mcpConnect your agent — build around #021827

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 #021827 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/021827-9cafc4-df4e5a-1f222d-e9f1f0?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