Color
#aa3303
#aa3303rgb(170, 51, 3)hsl(17, 97%, 34%)oklch(0.496 0.162 37.5)Colors that go with #aa3303
Crimson, Royal Blue and Sea Green 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.
Crimson #dc143c
analogousshippedCrimson is #aa3303's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #aa3303 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #aa3303 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
complementaryshippedTeal sits directly opposite #aa3303 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #aa3303 in 4 real palettes, including Ember and Maple, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #aa3303: 4 real palettes, including Behance's brand system and MLB's brand system, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #aa3303 in 6 real palettes, including Olive Grove and BrandSweets's brand system, as the lead colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #aa3303: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #aa3303
Tints & shades
Harmonies
Contrast
| #aa3303 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.6:1 | pass | pass | fail |
|
Aaon black | 3.18:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #aa3303 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
#aa3303 reads as warm, vivid, playful. 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 #aa3303 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/aa3303-c4ac9c-62cbb6-2d291f-f1e9eb?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