Color
#b21571
#b21571rgb(178, 21, 113)hsl(325, 79%, 39%)oklch(0.508 0.199 352.2)Colors that go with #b21571
Crimson, Denim and Taupe 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 #b21571's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Denim #1560bd
shippedDesigners have shipped Denim with #b21571: 6 real palettes, including Chase's brand system and Ulta Beauty's brand system, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #b21571 in 5 real palettes, including Dunkin''s brand system and AT&T's brand system, as the lead colour.
Teal #008080
complementaryTeal sits directly opposite #b21571 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Forest Green #228b22
split-complementshippedForest Green is a split-complement of #b21571: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Royal Blue #4169e1
shippedRoyal Blue is paired with #b21571 in 3 real palettes, including Chase's brand system and Ubisoft's brand system, as the supporting colour.
Steel Blue #4682b4
triadicshippedSteel Blue completes a triad with #b21571 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Charcoal #36454f
neutralCharcoal is the body-text near-black for #b21571: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #b21571
Tints & shades
Harmonies
Contrast
| #b21571 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.48:1 | pass | pass | fail |
|
Aaon black | 3.24:1 | 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 #b21571 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
#b21571 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 #b21571 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/b21571-c19faf-69cb62-2d1f21-f0e9f1?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