Color
#6731bf
#6731bfrgb(103, 49, 191)hsl(263, 59%, 47%)oklch(0.47 0.206 294.4)Colors that go with #6731bf
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 #6731bf: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #6731bf'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 #6731bf: 4 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #6731bf in 5 real palettes, including Gemstone and Wells Fargo's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #6731bf: 5 real palettes, including Linkedin's brand system and Slack's brand system, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Kraken's brand system and Purina Pro Plan's brand system put Midnight Blue beside #6731bf, as the lead colour.
Sea Green #2e8b57
shippedSea Green shows up next to #6731bf in 4 real palettes, including Jack Daniel's's brand system and Netflix's brand system, as the accent.
Tomato #ff6347
shipped5 real palettes, including GitLab's brand system and Etsy's brand system put Tomato beside #6731bf, as the lead colour.
Real palettes that use #6731bf
Tints & shades
Harmonies
Contrast
| #6731bf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.59:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.77:1 | 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 #6731bf as the background.
Brands using this color
Fonts for this mood
#6731bf 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 #6731bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/6731bf-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