#311d4e as text	Ratio	AA	AA large	AAA	Fix
Aaon white	14.83:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.42:1	fail	fail	fail	AA: use #8a63c5 as the text (4.67:1) AAA: use #a688d3 as the text (7.08:1) AA: or shift the background to #8f8f8f (4.58:1) AAA: or shift the background to #b3b3b3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #311d4e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

8b5cf6 c4b5fd f472b6 faf7ff 2e1f47

Lavender Haze

Open in tool →

Violet and pink on lilac-white: Gen-Z friendly, while the deep plum text keeps it legible.

Playful Cool Light

Fonts for this mood

#311d4e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →Modern fonts →

mcpConnect your agent — build around #311d4e

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 #311d4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/311d4e-b19cc4-dfd34e-2b1f2d-e9eaf1?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