Color
#431f75
#431f75rgb(67, 31, 117)hsl(265, 58%, 29%)oklch(0.342 0.138 297.7)Colors that go with #431f75
Charcoal, Royal Blue and Crimson 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 #431f75: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #431f75's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Crimson #dc143c
shippedCrimson is paired with #431f75 in 7 real palettes, including Casper Sleep's brand system and Marvel's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #431f75: 6 real palettes, including Hinge's brand system and Panasonic's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #431f75: 4 real palettes, including Frost & Ember and Glacier, as the supporting colour.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #431f75: 6 real palettes, including FedEx's brand system and Hershey's's brand system, as the accent.
Taupe #483c32
shippedTaupe is paired with #431f75 in 4 real palettes, including Gillette's brand system and American Eagle's brand system, as the lead colour.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and dbt Labs's brand system put Tomato beside #431f75, as the supporting colour.
Real palettes that use #431f75
Tints & shades
Harmonies
Contrast
| #431f75 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.41:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.69:1 | 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 #431f75 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
#431f75 reads as cool, dark, luxury. 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 #431f75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/431f75-b19cc4-dfd54e-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