Color
#645b35
#645b35rgb(100, 91, 53)hsl(49, 31%, 30%)oklch(0.47 0.057 96.4)Colors that go with #645b35
Charcoal, Slate Blue 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 #645b35: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Slate Blue #6a5acd
complementaryshippedSlate Blue sits directly opposite #645b35 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shipped6 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #645b35.
Copper #b87333
shippedDesigners have shipped Copper with #645b35: 5 real palettes, including Clay & Linen and Desert Road, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #645b35 in 4 real palettes, including Gemstone and Five Guys's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #645b35: 5 real palettes, including HP's brand system and Intel's brand system, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #645b35 in 4 real palettes, including Undergrowth and Console Light, as the lead colour.
Peru #cd853f
shipped5 real palettes, including Bakery and Coffee Bar put Peru beside #645b35, as the supporting colour.
Real palettes that use #645b35
Tints & shades
Harmonies
Contrast
| #645b35 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.8:1 | pass | pass | fail |
|
Aaon black | 3.09:1 | 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 #645b35 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
#645b35 reads as warm, muted, 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 #645b35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/645b35-c4c19c-4eaedf-2a2d1f-f1ece9?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