#191b2f as text	Ratio	AA	AA large	AAA	Fix
Aaon white	16.95:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.24:1	fail	fail	fail	AA: use #696fb0 as the text (4.5:1) AAA: use #8d92c3 as the text (7.03:1) AA: or shift the background to #858585 (4.59:1) AAA: or shift the background to #a8a8a8 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #191b2f as the background.

Brands using this color

Asanasecondary · #151b26 · Δ1.972

Palettes built around it

0f1b2d 7d93a8 0ea5e9 ffffff

Arctic

Open in tool →

Navy type on white with an ice-blue accent: crisp and corporate without going grey.

Clean Cool Minimal

Fonts for this mood

#191b2f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →

mcpConnect your agent — build around #191b2f

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 #191b2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/191b2f-9e9cc4-df8d4e-241f2d-e9eef1?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