Color
#645f5e
#645f5ergb(100, 95, 94)hsl(10, 3%, 38%)oklch(0.49 0.007 31.1)Colors that go with #645f5e
Charcoal, Champagne and Copper 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 that reads cleanly against #645f5e without the hard edge of pure #000.
Champagne #f7e7ce
shipped6 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #645f5e.
Copper #b87333
shippedDesigners have shipped Copper with #645f5e: 6 real palettes, including Desert Road and Clay & Linen, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #645f5e in 6 real palettes, including Gemstone and Codecademy's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #645f5e: 7 real palettes, including HP's brand system and Campus, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #645f5e in 5 real palettes, including Mid-Century and Fireside, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #645f5e in 4 real palettes, including Undergrowth and Console Light, as the lead colour.
Midnight Blue #191970
shipped5 real palettes, including Lufthansa's brand system and Open House put Midnight Blue beside #645f5e, as the lead colour.
Real palettes that use #645f5e
Tints & shades
Harmonies
Contrast
| #645f5e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.29:1 | pass | pass | fail |
|
Aaon black | 3.34:1 | 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 #645f5e as the background.
Brands using this color
Fonts for this mood
#645f5e reads as neutral, minimal. 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 #645f5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/645f5e-a2beb0-c859d4-1f2d2b-eaf1e9?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