Ink & Paper
Open in tool →Two greys and one ink-blue link color: the palette of a well-set book page.
Color
#647372rgb(100, 115, 114)hsl(176, 7%, 42%)oklch(0.543 0.018 191.7)Charcoal, Blush Pink 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 is the text near-black that reads cleanly against #647372 without the hard edge of pure #000.
4 real palettes, including Graphite Mono and Rain Garden put Blush Pink beside #647372, as the accent.
7 real palettes, including Forest Floor and Coffee Bar put Champagne beside #647372, as that palette's text colour.
Designers have shipped Copper with #647372: 7 real palettes, including Riverbed and Clay & Linen, as the accent.
Crimson is paired with #647372 in 7 real palettes, including Retro Pop and Gemstone, as the lead colour.
Designers have shipped Denim with #647372: 9 real palettes, including Campus and Intel's brand system, as the lead colour.
Goldenrod shows up next to #647372 in 7 real palettes, including Mid-Century and Sapphire & Gold, as the accent.
Medium Sea Green is paired with #647372 in 4 real palettes, including Indigo SaaS and Undergrowth, as the accent.
| #647372 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.96:1 | 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 #647372 as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
#647372 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 #647372 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/647372-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