#040b10 as text	Ratio	AA	AA large	AAA	Fix
Aaon white	19.8:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.06:1	fail	fail	fail	AA: use #2d7bb4 as the text (4.6:1) AAA: use #509cd3 as the text (7.04:1) AA: or shift the background to #7a7a7a (4.61:1) AAA: or shift the background to #9c9c9c (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040b10 as the background.

Brands using this color

Palettes built around it

7c3aed 0a0a0a 06b6d4 ffffff

Circuit

Open in tool →

Violet plus cyan is the current AI-product signal — pair it with pure black type to keep it from going candy.

Technical Vivid Bold

ff3b30 ffffff ffe600 0a0a0a

Streetwear

Open in tool →

Black, white, red, yellow — drop-culture signal colors, unmissable at thumbnail size.

Bold Vivid DarkFashion

cbb26a 8b83a8 b8b8c8 0a0a12 efe9dd

Midnight Luxe

Open in tool →

Champagne gold on ink-navy with a violet undertone — hotels and spirits use it because it reads expensive at any size.

Luxury Dark Elegant

Fonts for this mood

#040b10 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 #040b10

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 #040b10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040b10-9cafc4-df4e58-1f212d-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