Color
#866fb3
#866fb3rgb(134, 111, 179)hsl(260, 31%, 57%)oklch(0.591 0.104 298.7)Colors that go with #866fb3
Charcoal, Amber and Crimson 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #866fb3: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #866fb3 in 5 real palettes, including Mastodon hosted on mastodon.social's brand system and Beach Hut, as the accent.
Crimson #dc143c
shippedCrimson is paired with #866fb3 in 4 real palettes, including Marvel's brand system and Retro Pop, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #866fb3: 4 real palettes, including Calm's brand system and Astro's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #866fb3: 7 real palettes, including Campus and American Express's brand system, as the lead colour.
Midnight Blue #191970
shipped7 real palettes, including Marvel's brand system and Plaid's brand system put Midnight Blue beside #866fb3, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #866fb3 in 10 real palettes, including Zed's brand system and Retool's brand system, as that palette's text colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #866fb3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #866fb3
Tints & shades
Harmonies
Contrast
| #866fb3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.25:1 | fail | pass | fail | |
Aaon black | 4.94:1 | pass | 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 #866fb3 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #866fb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/866fb3-ae9cc4-dfc94e-2a1f2d-e9ebf1?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