Ledger Dark
Open in tool →Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy.
CSS color
lightslategray
#778899
hex
#778899rgb
rgb(119, 136, 153)hsl
hsl(210, 14%, 53%)oklch
oklch(0.619 0.032 248.4)Relative luminance 0.2383
Lightslategray on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 4 public brands that use it and the palettes it appears in.
Colors that go with lightslategray
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 lightslategray: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
complementaryshippedCopper sits directly opposite lightslategray 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 lightslategray, as that palette's text colour.
Crimson #dc143c
shippedCrimson is paired with lightslategray in 5 real palettes, including Retro Pop and Diner, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with lightslategray: 7 real palettes, including Dusk and Campus, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to lightslategray in 4 real palettes, including Ledger Dark and Noir Beauty, as the lead colour.
Midnight Blue #191970
shipped10 real palettes, including Plaid's brand system and Open House put Midnight Blue beside lightslategray, as the supporting colour.
Orange #ffa500
shipped4 real palettes, including Campus and Graphite put Orange beside lightslategray, as the accent.
Real palettes that use lightslategray
Tints & shades
Harmonies
Contrast
| lightslategray as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.64:1 | fail | pass | fail | |
Aaon black | 5.77:1 | 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 lightslategray as the background.
Brands using this color
Palettes built around it
mcpConnect your agent — build around lightslategray
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #778899 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/778899-9cabc4-df514e-1f202d-e9f1f1?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