Neobank
Open in tool →Purple-and-lime is the challenger-bank uniform — high energy, and clearly not a legacy bank.
Color
#671fdb
#671fdb
hex
#671fdbrgb
rgb(103, 31, 219)hsl
hsl(263, 75%, 49%)oklch
oklch(0.479 0.249 290.5)Closest name: Hokkaido Lavender (#7736d9)Relative luminance 0.0898
Colors that go with #671fdb
Royal Blue, Charcoal and Cobalt 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.
Royal Blue #4169e1
analogousshippedRoyal Blue is #671fdb's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #671fdb: softer than #000 and cool enough to feel like part of the same palette.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #671fdb: 4 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #671fdb: 4 real palettes, including Kraken's brand system and Render's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #671fdb: 4 real palettes, including Linkedin's brand system and Unilever's brand system, as the lead colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #671fdb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Orange Red #ff4500
shippedOrange Red is paired with #671fdb in 3 real palettes, including Prepare your taste buds...'s brand system and Clerk's brand system, as the lead colour.
Forest Green #228b22
split-complementForest Green is a split-complement of #671fdb: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #671fdb
Tints & shades
Harmonies
Contrast
| #671fdb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.51:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.8:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #671fdb as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#671fdb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #671fdb
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #671fdb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/671fdb-b09cc4-dfd04e-2b1f2d-e9eaf1?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