Color
#b181c5
#b181c5rgb(177, 129, 197)hsl(282, 37%, 64%)oklch(0.675 0.111 315.6)Colors that go with #b181c5
Charcoal, Medium Sea Green and Midnight 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #b181c5: softer than #000 and cool enough to feel like part of the same palette.
Medium Sea Green #3cb371
complementaryshippedMedium Sea Green sits directly opposite #b181c5 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Midnight Blue #191970
shipped4 real palettes, including Plaid's brand system and Open House put Midnight Blue beside #b181c5, as the supporting colour.
Amber #ffbf00
shippedAmber is paired with #b181c5 in 3 real palettes, including Blueprint and Ahrefs's brand system, as the accent.
Cornflower Blue #6495ed
analogousshippedCornflower Blue is #b181c5's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Emerald Green #50c878
shippedEmerald Green is paired with #b181c5 in 3 real palettes, including Obsidian's brand system and Ledger Dark, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #b181c5 in 3 real palettes, including Ledger Dark and Open House, as the lead colour.
Medium Slate Blue #7b68ee
shippedMedium Slate Blue shows up next to #b181c5 in 3 real palettes, including Obsidian's brand system and Mastodon hosted on mastodon.social's brand system, as the supporting colour.
Real palettes that use #b181c5
Tints & shades
Harmonies
Contrast
| #b181c5 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.08:1 | fail | pass | fail | |
Aaon black | 6.82:1 | 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 #b181c5 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
#b181c5 reads as cool, modern. 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 #b181c5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/b181c5-ba9fc1-b4cb62-2d1f2b-ebe9f1?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