Color
#431367
#431367rgb(67, 19, 103)hsl(274, 69%, 24%)oklch(0.315 0.137 305.6)Colors that go with #431367
Charcoal, Crimson and Denim 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 #431367: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #431367 in 4 real palettes, including Casper Sleep's brand system and Marvel's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #431367: 7 real palettes, including Hinge's brand system and Discover's brand system, as the accent.
Royal Blue #4169e1
analogousshippedRoyal Blue is #431367's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and dbt Labs's brand system put Tomato beside #431367, as the supporting colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #431367 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #431367: 3 real palettes, including Frost & Ember and Macaron, as the supporting colour.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #431367: 3 real palettes, including FedEx's brand system and Discover's brand system, as the accent.
Real palettes that use #431367
Tints & shades
Harmonies
Contrast
| #431367 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.75:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.53:1 | 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 #431367 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
#431367 reads as cool, vivid, dark. 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 #431367 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/431367-b79cc4-c2cb62-2d1f2d-eae9f1?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