Color
#166ea2
#166ea2rgb(22, 110, 162)hsl(202, 76%, 36%)oklch(0.515 0.113 241.4)Colors that go with #166ea2
Charcoal, Royal Blue and Amber 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 #166ea2: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #166ea2's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #166ea2 in 7 real palettes, including Lemon Squeezy's brand system and Wired's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #166ea2 in 6 real palettes, including Glacier and Fintech Trust, as the accent — a combination designers have actually shipped, not a computed rotation.
Copper #b87333
shippedCopper is paired with #166ea2 in 4 real palettes, including Dusk and Notion's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #166ea2 in 11 real palettes, including Amazon's brand system and State Farm's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Firebrick #b22222
shippedFirebrick is paired with #166ea2 in 4 real palettes, including AT&T's brand system and Wendy's's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #166ea2 in 10 real palettes, including Discover's brand system and Open House, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #166ea2
Tints & shades
Harmonies
Contrast
| #166ea2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.55:1 | pass | pass | fail |
|
Aaon black | 3.79:1 | 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 #166ea2 as the background.
Brands using this color
Fonts for this mood
#166ea2 reads as cool, vivid, technical. 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 #166ea2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/166ea2-9cb1c4-df4e5f-1f222d-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