Color
#637740
#637740rgb(99, 119, 64)hsl(82, 30%, 36%)oklch(0.539 0.083 125.4)Colors that go with #637740
Charcoal, Slate Blue and Blue 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 #637740: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Slate Blue #6a5acd
complementaryshippedSlate Blue sits directly opposite #637740 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Warp's brand system and Kia's brand system put Blue beside #637740, as the supporting colour.
Champagne #f7e7ce
shipped5 real palettes, including Forest Floor and Woodsmoke put Champagne beside #637740, as that palette's text colour.
Copper #b87333
shippedDesigners have shipped Copper with #637740: 5 real palettes, including Clay & Linen and Wellness, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #637740 in 5 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #637740: 7 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #637740 in 5 real palettes, including Subaru's brand system and Coinbase's brand system, as the supporting colour.
Real palettes that use #637740
Tints & shades
Harmonies
Contrast
| #637740 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.95:1 | pass | pass | fail |
|
Aaon black | 4.24:1 | 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 #637740 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 #637740 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/637740-b0bea2-4e5fdf-222d1f-f1f0e9?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