Color
#851bee
#851beergb(133, 27, 238)hsl(270, 86%, 52%)oklch(0.528 0.271 298.1)Colors that go with #851bee
Olive Green, Deep Sky Blue and Medium Slate 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.
Olive Green #808000
complementaryOlive Green sits directly opposite #851bee on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #851bee: 3 real palettes, including Render's brand system and Kraken's brand system, as the supporting colour.
Medium Slate Blue #7b68ee
shippedMedium Slate Blue shows up next to #851bee in 3 real palettes, including ClickUp's brand system and monday.com's brand system, as the supporting colour.
Teal #008080
triadicshippedTeal completes a triad with #851bee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Forest Green #228b22
split-complementForest Green is a split-complement of #851bee: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Royal Blue #4169e1
analogousshippedRoyal Blue is #851bee's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Charcoal #36454f
neutralCharcoal is the text near-black for #851bee: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
shippedDesigners have shipped Denim with #851bee: two real palettes: Linkedin's brand system and Peacock, as the lead colour.
Real palettes that use #851bee
Tints & shades
Harmonies
Contrast
| #851bee as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.2:1 | pass | pass | fail |
|
Aaon black | 3.39:1 | 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 #851bee 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
#851bee reads as cool, vivid, technical. 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 #851bee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/851bee-b59cc4-c9cb62-2c1f2d-eae9f1?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