Neobank
Open in tool →Purple-and-lime is the challenger-bank uniform — high energy, and clearly not a legacy bank.
Color
#6731d3
#6731d3
hex
#6731d3rgb
rgb(103, 49, 211)hsl
hsl(260, 65%, 51%)oklch
oklch(0.488 0.227 290.5)Closest name: Hokkaido Lavender (#7736d9)Relative luminance 0.0978
Colors that go with #6731d3
Charcoal, Royal Blue 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #6731d3: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #6731d3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #6731d3: 5 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #6731d3: 5 real palettes, including Qualcomm's brand system and Coca-Cola's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #6731d3 in 5 real palettes, including Gemstone and Wells Fargo's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #6731d3: 5 real palettes, including Linkedin's brand system and Unilever's brand system, as the lead colour.
Medium Slate Blue #7b68ee
shippedMedium Slate Blue shows up next to #6731d3 in 4 real palettes, including ClickUp's brand system and Stripe's brand system, as the supporting colour.
Midnight Blue #191970
shipped8 real palettes, including Kraken's brand system and Purina Pro Plan's brand system put Midnight Blue beside #6731d3, as the lead colour.
Real palettes that use #6731d3
Tints & shades
Harmonies
Contrast
| #6731d3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.1:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.96:1 | 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 #6731d3 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
#6731d3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #6731d3
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 #6731d3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/6731d3-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