Color
#645d17
#645d17rgb(100, 93, 23)hsl(55, 63%, 24%)oklch(0.471 0.088 103.5)Colors that go with #645d17
Charcoal, Denim and Champagne 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 body-text near-black for #645d17: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Denim #1560bd
split-complementshippedDenim is a split-complement of #645d17: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Champagne #f7e7ce
shipped6 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #645d17.
Copper #b87333
shippedDesigners have shipped Copper with #645d17: 5 real palettes, including Clay & Linen and Desert Road, as the lead colour.
Peru #cd853f
shipped4 real palettes, including Bakery and Woodsmoke put Peru beside #645d17, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #645d17 in 4 real palettes, including Subaru's brand system and GitHub's brand system, as the supporting colour.
Rust #b7410e
shippedRust shows up next to #645d17 in 4 real palettes, including Magazine Ochre and Trailhead, as the lead colour.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with #645d17: 7 real palettes, including Olive Grove and Homestead, as the supporting colour.
Real palettes that use #645d17
Tints & shades
Harmonies
Contrast
| #645d17 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.73:1 | pass | pass | fail |
|
Aaon black | 3.12:1 | fail | 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 #645d17 as the background.
Brands using this color
Fonts for this mood
#645d17 reads as warm, 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 #645d17 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/645d17-bdbea2-4ea0df-282d1f-f1ede9?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