Color
#100404
#100404rgb(16, 4, 4)hsl(0, 60%, 4%)oklch(0.13 0.026 21.2)Colors that go with #100404
Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black that reads cleanly against #100404 without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #100404 in 15 real palettes, including Ember and Ahrefs's brand system, as the accent.
Blue #0000ff
shipped17 real palettes, including Pfizer's brand system and Glossier's brand system put Blue beside #100404, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #100404 in 10 real palettes, including Circuit and Render's brand system, as the lead colour.
Brown #a52a2a
shipped4 real palettes, including Velvet and Garnet put Brown beside #100404, as the lead colour.
Burgundy #800020
shipped4 real palettes, including Mailchimp's brand system and Rare Beauty's brand system put Burgundy beside #100404, as the accent.
Champagne #f7e7ce
shipped7 real palettes, including Midnight Luxe and Sweetgreen's brand system put Champagne beside #100404, as the text colour against it.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #100404: 14 real palettes, including Oreo's brand system and Behance's brand system, as the lead colour.
Real palettes that use #100404
Tints & shades
Harmonies
Contrast
| #100404 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 20.17:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.04:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100404 as the background.
Brands using this color
Fonts for this mood
#100404 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #100404 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/100404-c4a19c-62cb98-2d251f-f1e9ed?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md