Color
#647d7d
#647d7drgb(100, 125, 125)hsl(180, 11%, 44%)oklch(0.57 0.029 196.4)Colors that go with #647d7d
Charcoal, Champagne and Cobalt 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 text near-black that reads cleanly against #647d7d without the hard edge of pure #000.
Champagne #f7e7ce
shipped6 real palettes, including Forest Floor and Coffee Bar put Champagne beside #647d7d, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #647d7d: 5 real palettes, including Ink & Paper and Intel's brand system, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #647d7d: 7 real palettes, including Riverbed and Wellness, as the accent.
Crimson #dc143c
shippedCrimson is paired with #647d7d in 8 real palettes, including Retro Pop and Redfin's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #647d7d: 11 real palettes, including Campus and Intel's brand system, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #647d7d in 6 real palettes, including Noir Beauty and Ledger Dark, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Paramount+'s brand system and Plaid's brand system put Midnight Blue beside #647d7d, as the supporting colour.
Real palettes that use #647d7d
Tints & shades
Harmonies
Contrast
| #647d7d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.4:1 | fail | pass | fail | |
Aaon black | 4.77:1 | 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 #647d7d 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 #647d7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/647d7d-a2bbbe-d45994-1f272d-e9f1ed?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