Color
#512173
#512173rgb(81, 33, 115)hsl(275, 55%, 29%)oklch(0.361 0.136 307.8)Colors that go with #512173
Charcoal, Crimson and Midnight 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 #512173: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #512173 in 6 real palettes, including Lenovo's brand system and Casper Sleep's brand system, as the supporting colour.
Midnight Blue #191970
shipped7 real palettes, including Gillette's brand system and Visa's brand system put Midnight Blue beside #512173, as the supporting colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #512173: 4 real palettes, including Frost & Ember and Macaron, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #512173 in 4 real palettes, including Discord's brand system and Confluent's brand system, as the lead colour.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #512173: 4 real palettes, including FedEx's brand system and Fintech Trust, as the accent.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and dbt Labs's brand system put Tomato beside #512173, as the supporting colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #512173 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #512173
Tints & shades
Harmonies
Contrast
| #512173 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.57:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.81:1 | 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 #512173 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
#512173 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 #512173 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/512173-b89cc4-c0cb62-2d1f2d-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