Color
#ad231f
#ad231frgb(173, 35, 31)hsl(2, 70%, 40%)oklch(0.488 0.175 27.8)Colors that go with #ad231f
Royal Blue, Teal and Dark Olive 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.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #ad231f — 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 #ad231f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #ad231f in 5 real palettes, including Olive Grove and Cider, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #ad231f: 9 real palettes, including State Farm's brand system and Campbell's's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #ad231f in 4 real palettes, including Fireside and Noir Beauty, as the accent.
Hunter Green #355e3b
shippedHunter Green is paired with #ad231f in 4 real palettes, including Fireside and Trailhead, as the supporting colour.
Slate Gray #708090
shipped5 real palettes, including Newsprint and Typewriter put Slate Gray beside #ad231f, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #ad231f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #ad231f
Tints & shades
Harmonies
Contrast
| #ad231f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.91:1 | pass | pass | fail |
|
Aaon black | 3.04:1 | 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 #ad231f as the background.
Brands using this color
Fonts for this mood
#ad231f 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 #ad231f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/ad231f-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