Color
#503579
#503579rgb(80, 53, 121)hsl(264, 39%, 34%)oklch(0.395 0.112 299.6)Colors that go with #503579
Charcoal, 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 #503579: softer than #000 and cool enough to feel like part of the same palette.
Blue #0000ff
shipped5 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #503579, as the accent.
Crimson #dc143c
shippedCrimson is paired with #503579 in 8 real palettes, including Wells Fargo's brand system and Marvel's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #503579: 10 real palettes, including Hinge's brand system and HP's brand system, as the accent.
Midnight Blue #191970
shipped10 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #503579, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #503579: 6 real palettes, including First Snow and Glacier, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #503579 in 8 real palettes, including Nokia's brand system and Zoom's brand system, as the supporting colour.
Dark Olive Green #556b2f
complementaryDark Olive Green sits directly opposite #503579 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 #503579
Tints & shades
Harmonies
Contrast
| #503579 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.88:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.13:1 | 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 #503579 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
#503579 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 #503579 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/503579-b19cc4-dfd34e-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