Ember
Open in tool →Flame orange on charcoal — the sports and energy palette; one accent yellow for stats and highlights.
Color
#ac3a2f
#ac3a2f
hex
#ac3a2frgb
rgb(172, 58, 47)hsl
hsl(5, 57%, 43%)oklch
oklch(0.511 0.151 28.9)Closest name: Barbarossa (#a84734)Relative luminance 0.12
Colors that go with #ac3a2f
Royal Blue, Sea Green 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.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #ac3a2f — 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 #ac3a2f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #ac3a2f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite #ac3a2f 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 #ac3a2f in 4 real palettes, including Ember and Maple, as the accent.
Champagne #f7e7ce
shipped5 real palettes, including Woodsmoke and BrandSweets's brand system put Champagne beside #ac3a2f, as the text colour against it.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #ac3a2f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #ac3a2f: 4 real palettes, including MLB's brand system and Behance's brand system, as the accent.
Real palettes that use #ac3a2f
Tints & shades
Harmonies
Contrast
| #ac3a2f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.18:1 | pass | pass | fail |
|
Aaon black | 3.4:1 | 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 #ac3a2f as the background.
Brands using this color
Palettes built around it
Woodsmoke
Open in tool →Amber and oxblood on smoky brown — a fireside dark mode that photographs whisky, leather and wool.
Typewriter
Open in tool →Ink-black and ribbon-red on manila — the correspondence palette; all the vintage comes from the paper colour.
Fireside
Open in tool →Cranberry, pine and brass on a charcoal night — the holiday palette without the clichés, because the surface is cold.
Fonts for this mood
#ac3a2f reads as warm. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #ac3a2f
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #ac3a2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/ac3a2f-c4a49c-62cba1-2d261f-f1e9ec?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