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
#375686
#375686
hex
#375686rgb
rgb(55, 86, 134)hsl
hsl(216, 42%, 37%)oklch
oklch(0.452 0.087 258.9)Closest name: Assassin (#2d4f83)Relative luminance 0.0919
Colors that go with #375686
Sea Green, Crimson and Firebrick 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.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #375686 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Crimson #dc143c
shippedCrimson is paired with #375686 in 7 real palettes, including Amazon's brand system and Chase's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Firebrick #b22222
shippedFirebrick is paired with #375686 in 4 real palettes, including Campbell's's brand system and Wendy's's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #375686 in 4 real palettes, including Open House and Sapphire & Gold, as the accent — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #375686 in 4 real palettes, including Fintech Trust and Console Light, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #375686 in 8 real palettes, including First Snow and FIFA's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #375686 in 5 real palettes, including Tide's brand system and PlanetScale's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #375686: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #375686
Tints & shades
Harmonies
Contrast
| #375686 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.4:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.84:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375686 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#375686 reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #375686
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 #375686 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/375686-9ca7c4-df5f4e-201f2d-e9f0f1?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