Color
#5a5f6d
#5a5f6drgb(90, 95, 109)hsl(224, 10%, 39%)oklch(0.486 0.023 269.9)Colors that go with #5a5f6d
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 #5a5f6d without the hard edge of pure #000.
Champagne #f7e7ce
shipped5 real palettes, including Darkroom and BrandSweets's brand system put Champagne beside #5a5f6d, as the surface under it.
Copper #b87333
shippedDesigners have shipped Copper with #5a5f6d: 5 real palettes, including Desert Road and Dusk, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #5a5f6d in 7 real palettes, including Gemstone and Codecademy's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #5a5f6d: 8 real palettes, including HP's brand system and The New York Times's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #5a5f6d: 5 real palettes, including Newsprint and Fireside, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #5a5f6d in 4 real palettes, including Mid-Century and Open House, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #5a5f6d in 5 real palettes, including Console Light and Undergrowth, as the accent.
Real palettes that use #5a5f6d
Tints & shades
Harmonies
Contrast
| #5a5f6d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.38:1 | pass | pass | fail |
|
Aaon black | 3.29:1 | 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 #5a5f6d as the background.
Brands using this color
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 #5a5f6d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5a5f6d-9ca2c4-df724e-221f2d-e9eff1?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