Color
#431bbb
#431bbbrgb(67, 27, 187)hsl(255, 75%, 42%)oklch(0.408 0.222 281.7)Colors that go with #431bbb
Charcoal, Denim and Cornflower 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 #431bbb: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
analogousshippedDenim is #431bbb's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #431bbb: 5 real palettes, including Blue Mono and Peacock's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #431bbb in 7 real palettes, including Behance's brand system and Walgreens's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #431bbb: 5 real palettes, including Absolut's brand system and Cargo's brand system, as the supporting colour.
Midnight Blue #191970
shipped10 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #431bbb, as the lead colour.
Orange Red #ff4500
shippedOrange Red is paired with #431bbb in 8 real palettes, including Tide's brand system and Intercom's brand system, as the accent.
Red #ff0000
shippedRed is paired with #431bbb in 4 real palettes, including Twitch's brand system and 3M's brand system, as the accent.
Real palettes that use #431bbb
Tints & shades
Harmonies
Contrast
| #431bbb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.94:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.11:1 | 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 #431bbb 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
#431bbb reads as cool, vivid, technical. 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 #431bbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/431bbb-ab9cc4-dfbd4e-291f2d-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