Color
#336fa3
#336fa3rgb(51, 111, 163)hsl(208, 52%, 42%)oklch(0.526 0.103 247.4)Colors that go with #336fa3
Charcoal, Crimson 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 for #336fa3: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #336fa3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Copper #b87333
shippedCopper is paired with #336fa3 in 4 real palettes, including Dusk and Notion's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #336fa3 in 4 real palettes, including Fintech Trust and Open House, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #336fa3 in 10 real palettes, including Dusk and Mid-Century, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Sienna #a0522d
complementarySienna sits directly opposite #336fa3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Rust #b7410e
split-complementshippedRust is a split-complement of #336fa3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #336fa3 in 3 real palettes, including Open House and Alpine, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #336fa3
Tints & shades
Harmonies
Contrast
| #336fa3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.33:1 | pass | pass | fail |
|
Aaon black | 3.94:1 | 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 #336fa3 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
#336fa3 reads as cool, modern. 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 #336fa3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/336fa3-9cadc4-df4e51-1f212d-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