Color
#509583
#509583rgb(80, 149, 131)hsl(164, 30%, 45%)oklch(0.619 0.076 174.8)Colors that go with #509583
Charcoal, Copper 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 #509583: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
triadicshippedCopper completes a triad with #509583 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Crimson #dc143c
shippedCrimson is paired with #509583 in 8 real palettes, including Diner and Five Guys's brand system, as the lead colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #509583 in 4 real palettes, including Clay & Linen and Magazine Ochre, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #509583: 8 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Midnight Blue #191970
shipped9 real palettes, including Tide Pool and Fintech Trust put Midnight Blue beside #509583, as that palette's text colour.
Orange #ffa500
shipped5 real palettes, including Campus and Graphite put Orange beside #509583, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #509583 in 8 real palettes, including Subaru's brand system and Coinbase's brand system, as the supporting colour.
Tints & shades
Harmonies
Contrast
| #509583 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.52:1 | fail | pass | fail | |
Aaon black | 5.97:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509583 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #509583 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/509583-a2beba-d459b5-1f2b2d-e9f1eb?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