Color
#660300
#660300rgb(102, 3, 0)hsl(2, 100%, 20%)oklch(0.322 0.13 29.9)Colors that go with #660300
Teal, Crimson and Steel 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.
Teal #008080
complementaryshippedTeal sits directly opposite #660300 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #660300 in 4 real palettes, including M&M's's brand system and Burger King's brand system, as the supporting colour.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #660300: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Copper #b87333
shippedDesigners have shipped Copper with #660300: 3 real palettes, including Chipotle's brand system and Bramble, as the accent.
Blue #0000ff
shippedTwo real palettes: Tim Hortons's brand system and Dunkin''s brand system put Blue beside #660300, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #660300: two real palettes: Reebok's brand system and Hershey's's brand system, as the accent.
Cream #fffdd0
neutralCream is the surface #660300 wants: a warm off-white that shares its undertone, so #660300 reads softer on it than on pure white.
Denim #1560bd
shippedDesigners have shipped Denim with #660300: two real palettes: Heinz's brand system and Box's brand system, as the accent.
Real palettes that use #660300
Tints & shades
Harmonies
Contrast
| #660300 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.31:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.58:1 | 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 #660300 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#660300 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 #660300 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/660300-c4a29c-62cb9c-2d261f-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