Harbour
Open in tool →Steel blue and haze with a buoy orange on a pale grey — the maritime palette every port town uses for a reason.
Color
#2e5f84
#2e5f84
hex
#2e5f84rgb
rgb(46, 95, 132)hsl
hsl(206, 48%, 35%)oklch
oklch(0.469 0.08 243.6)Closest name: Blue Velvet (#0d6183)Relative luminance 0.1043
Colors that go with #2e5f84
Charcoal, Royal Blue and Rust 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 #2e5f84: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #2e5f84's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Rust #b7410e
split-complementshippedRust is a split-complement of #2e5f84: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #2e5f84 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #2e5f84 in 6 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour.
Blue #0000ff
shipped5 real palettes, including Tesco's brand system and Activision's brand system put Blue beside #2e5f84, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2e5f84: 6 real palettes, including Fintech Trust and Unilever's brand system, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #2e5f84 in 17 real palettes, including Costco's brand system and McDonald's's brand system, as the lead colour.
Real palettes that use #2e5f84
Tints & shades
Harmonies
Contrast
| #2e5f84 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.8:1 | pass | pass | fail |
|
Aaon black | 3.09:1 | 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 #2e5f84 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#2e5f84 reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #2e5f84
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 #2e5f84 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/2e5f84-9caec4-df4e56-1f212d-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