Color
#648390
#648390rgb(100, 131, 144)hsl(198, 18%, 48%)oklch(0.591 0.04 225.5)Colors that go with #648390
Charcoal, Copper 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 text near-black for #648390: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
complementaryshippedCopper sits directly opposite #648390 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Champagne #f7e7ce
shipped4 real palettes, including Midnight Luxe and Forest Floor put Champagne beside #648390, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #648390: 6 real palettes, including Ink & Paper and Fintech Trust, as the accent.
Crimson #dc143c
shippedCrimson is paired with #648390 in 9 real palettes, including Retro Pop and Redfin's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #648390: 14 real palettes, including Campus and Peacock, as the lead colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #648390: 4 real palettes, including Newsprint and Honda's brand system, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #648390 in 5 real palettes, including Ledger Dark and Noir Beauty, as the lead colour.
Real palettes that use #648390
Tints & shades
Harmonies
Contrast
| #648390 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.05:1 | fail | pass | fail | |
Aaon black | 5.19:1 | 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 #648390 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 #648390 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/648390-9cb3c4-df4e69-1f232d-e9f1f0?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