Color
#646374
#646374rgb(100, 99, 116)hsl(244, 8%, 42%)oklch(0.507 0.027 288.1)Colors that go with #646374
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 #646374 without the hard edge of pure #000.
Champagne #f7e7ce
shippedChampagne is paired with #646374 in 5 real palettes, including BrandSweets's brand system and Darkroom — a combination designers have actually shipped, not a computed rotation.
Copper #b87333
shippedCopper is paired with #646374 in 6 real palettes, including Dusk and Desert Road, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #646374 in 5 real palettes, including Retro Pop and Gemstone, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #646374 in 4 real palettes, including Campus and HP's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Firebrick #b22222
shippedFirebrick is paired with #646374 in 4 real palettes, including Newsprint and Fireside, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #646374 in 5 real palettes, including Mid-Century and Open House, as the accent — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #646374 in 4 real palettes, including Indigo SaaS and Undergrowth, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #646374
Tints & shades
Harmonies
Contrast
| #646374 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.87:1 | pass | pass | fail |
|
Aaon black | 3.58:1 | 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 #646374 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
#646374 reads as muted, 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 #646374 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/646374-a39cc4-dfa24e-261f2d-e9edf1?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